/*C Primer Plus (7.11) 3*/
1 #include<stdio.h>
2 int main()
3 {
4 double weight,height;
5 printf("Please enter your weight and height.\n");
6 printf("Weight (pound):");
7 scanf("%lf",&weight);
8 printf("Height (inch):");
9 scanf("%lf",&height);
10 //加入建立比較友好的人機交互
11 if (weight < 100 && height > 64)
12 if (height >= 72)
13 printf("You are very tall for your weight.\n");
14 else
15 printf("You are tall for your weight.\n");
16 else if (weight > 300 && height < 48)
17 printf("You are quite short for your weight.\n");
18 else
19 printf("Your weight is ideal.\n");
20 //減少沒有用的if判斷條件
21 return 0;
22 }
23 /*
24 輸出樣例
25
26 Please enter your weight and height.
27 Weight (pound):99
28 Height (inch):65
29 You are tall for your weight.
30
31 Please enter your weight and height.
32 Weight (pound):98
33 Height (inch):72
34 You are very tall for your weight.
35
36 Please enter your weight and height.
37 Weight (pound):301
38 Height (inch):46
39 You are quite short for your weight.
40
41 Please enter your weight and height.
42 Weight (pound):200
43 Height (inch):50
44 Your weight is ideal.
45
46 */
/*C Primer Plus (7.11) 10*/
1 #include<stdio.h>
2 int main()
3 {
4 char ch;
5
6 while ((ch=getchar()) != '#')
7 {
8 if (ch != '\n')
9 {
10 printf("Step 1\n");
11 if (ch == 'b')
12 break;
13 else if (ch !='c')
14 {
15 if (ch != 'h')
16 printf("Step 2\n");
17 printf("Step 3\n");
18 }
19 }
20 }
21 printf("Done.\n");
22 return 0;
23 }
24 /*
25 輸出樣例
26
27 q
28 Step 1
29 Step 2
30 Step 3
31 c
32 Step 1
33 h
34 Step 1
35 Step 3
36 b
37 Step 1
38 Done.
39
40 */
/*C Primer Plus (7.12) 1*/
1 #include<stdio.h>
2 int main()
3 {
4 int space, linebreak, others;
5 int realothers = 0;
6 char ch;
7 space = linebreak = others = 0;
8
9 printf("Please enter some characters (# to quit).\n");
10 while ((ch = getchar()) != '#')
11 {
12 if (ch == ' ' ? space++ : others++ && ch == '\n' ? linebreak++ : others++);
13 }
14 realothers = others / 2;
15 printf("These are the number of characters required for statistics.\n");
16 printf("Space : %d" ,space);
17 printf("\nLinebreak : %d" ,linebreak);
18 printf("\nOthers: %d" ,realothers);
19
20 return 0;
21 }
22 /*
23 輸出樣例
24
25 Please enter some characters (# to quit).
26 Hello,My name is Coco.
27 Hello. My name is Mike !#
28 These are the number of characters required for statistics.
29 Space : 8
30 Linebreak : 1
31 Others: 38
32
33 */
/*C Primer Plus (7.12) 2*/
1 #include<stdio.h>
2 int main(void)
3 {
4 int i = 0;
5 char ch;
6
7 printf("Please enter some characters (# to quit):");
8 while ((ch = getchar()) != '#')
9 {
10 if (i++ % 8 == 0)
11 {
12 putchar('\n'); //每輸出8個字符的信息就進行一次換行操作
13 }
14 if (ch == '\n')
15 {
16 printf("\'\\n\' -> %2d ",ch);
17 }
18 else if (ch == '\t')
19 {
20 printf("\'\\t\' -> %2d ",ch);
21 }
22 else
23 {
24 printf("\'%c\' -> %2d ",ch,ch);
25 }
26 }
27 printf("\nDone.");
28
29 return 0;
30 }
31 /*
32 輸出樣例
33
34 Please enter some characters (# to quit):KurokiTomoko#
35
36 'K' -> 75 'u' -> 117 'r' -> 114 'o' -> 111 'k' -> 107 'i' -> 105 'T' -> 84 'o' -> 111
37 'm' -> 109 'o' -> 111 'k' -> 107 'o' -> 111
38 Done.
39
40 */
/*C Primer Plus (7.12) 3*/
1 #include<stdio.h>
2 int main()
3 {
4 int num;
5 int even,odd; //偶數的個數，奇數的個數
6 int e_sum,o_sum;
7 double e_value,o_value; //偶數和的平均值，奇數和的平均值
8 even = odd = num = e_sum = o_sum = 0;
9 e_value = o_value =0.0;
10 printf("Please enter some integer numbers.\n");
11 printf("The result your entered (0 to quit) : ");
12 while (scanf("%d",&num) == 1 && num)
13 {
14 (num % 2 == 0 ? (even++, e_sum += num) : (odd++, o_sum += num));
15 printf("Now you can enter again (0 to quit) : ");
16 }
17 printf("There are %d even numbers.\n",even);
18 if (even > 0)
19 {
20 e_value = e_sum / (double)even;
21 printf("The average of even numbers is : %.3lf\n",e_value);
22 }
23 printf("There are %d odd numbers.\n",odd);
24 if (odd > 0)
25 {
26 o_value = o_sum / (double)odd;
27 printf("The average of odd numbers is : %.3lf",o_value);
28 }
29 printf("\nDone.");
30 return 0;
31 }
32 /*
33 輸出樣例
34
35 Please enter some integer numbers.
36 The result your entered (0 to quit) : 1
37 Now you can enter again (0 to quit) : 2
38 Now you can enter again (0 to quit) : 3
39 Now you can enter again (0 to quit) : 4
40 Now you can enter again (0 to quit) : 5
41 Now you can enter again (0 to quit) : 6
42 Now you can enter again (0 to quit) : 7
43 Now you can enter again (0 to quit) : 8
44 Now you can enter again (0 to quit) : 9
45 Now you can enter again (0 to quit) : 0
46 There are 4 even numbers.
47 The average of even numbers is : 5.000
48 There are 5 odd numbers.
49 The average of odd numbers is : 5.000
50 Done.
51
52 */
/*C Primer Plus (7.12) 4*/
1 #include<stdio.h>
2 int main()
3 {
4 char ch;
5 int count1 = 0;
6 int count2 = 0;
7 printf("Please enter the text you want (enter '#' to quit).");
8 printf("\nNow please enter : ");
9 while ((ch = getchar()) != '#')
10 {
11 if (ch == '.')
12 {
13 putchar('!');
14 count1++;
15 }
16 else if (ch == '!')
17 {
18 printf("!!");
19 count2++;
20 }
21 else
22 {
23 putchar(ch);
24 }
25 }
26 printf("The number of times an exclamation mark "
27 "has been replaced with a period is : %d",count1);
28 printf("\nThe number of times an exclamation mark "
29 "is replaced by two exclamations is : %d",count2);
30 printf("\nDone.");
31
32 return 0;
33 }
34 /*
35 輸出樣例
36
37 Please enter the text you want (enter '#' to quit).
38 Now please enter : !!!!!.....
39 !!!!!!!!!!!!!!!
40 #
41 The number of times an exclamation mark has been replaced with a period is : 5
42 The number of times an exclamation mark is replaced by two exclamations is : 5
43 Done.
44
45 */
/*C Primer Plus (7.12) 5*/
#include<stdio.h>
int main()
{
char ch;
int count1 = 0;
int count2 = 0;
printf("Please enter the text you want (enter '#' to quit).");
printf("\nNow please enter : ");
while ((ch = getchar()) != '#')
{
switch(ch)
{
case '.':
{
putchar('!');
count1++;
break;
}
case '!':
{
printf("!!");
count2++;
break;
}
default:
{
putchar(ch);
}
}
}
printf("The number of times an exclamation mark "
"has been replaced with a period is : %d",count1);
printf("\nThe number of times an exclamation mark "
"is replaced by two exclamations is : %d",count2);
printf("\nDone.");
return 0;
}
/*
輸出樣例
Please enter the text you want (enter '#' to quit).
Now please enter : Hello, This is Coconut !
Hello, This is Coconut !!
My name is Coconut.
My name is Coconut!
#
The number of times an exclamation mark has been replaced with a period is : 1
The number of times an exclamation mark is replaced by two exclamations is : 1
Done.
*/
/*C Primer Plus (7.12) 6*/
#include<stdio.h>
int main()
{
int count = 0;
char ch;
char prev; //讀取的前一個字符
printf("Please enter some characters ('#' to quit):");
prev = '#'; //前一個字符為“#”的時候會停止(用於識別結束符號)
while ((ch = getchar()) != '#')
{
if(prev == 'e' && ch == 'i')
count++;
prev = ch;
}
printf("There %d ei in this sentence.",count);
return 0;
}
/*
輸出樣例
Please enter some characters ('#' to quit):Receive your eieio award.#
There 3 ei in this sentence.
*/
/*C Primer Plus (7.12) 7*/
#include<stdio.h>
#define BASIC_SALARY 10.00
#define EXTRA_WORK 1.5
#define NORMAL_TAX 0.15
#define EXTRA_TAX 0.20
#define OTHER_TAX 0.25
int main()
{
double worktime = 0.0;
double salary,tax,netincome;
salary = tax = netincome = 0.0;
printf("Please enter your "
"working hours in a week : ");
while (scanf("%lf",&worktime) != 1 || worktime <= 0)
{
while (getchar() != '\n') continue;
printf("Please enter a right number( >= 0 ).");
}
salary = worktime > 40 ? (40.00 * BASIC_SALARY) + (1.5 * (worktime - 40)) * BASIC_SALARY : worktime * BASIC_SALARY;
if (salary <= 300)
{
tax = 300.00 * NORMAL_TAX;
netincome = salary - tax;
}
else if (salary <= 450)
{
tax = 300.00 * NORMAL_TAX + (salary - 300.00) * EXTRA_TAX;
netincome = salary - tax;
}
else
{
tax = 300.00 * NORMAL_TAX + 150.00 * EXTRA_TAX + (salary - 450.00) * OTHER_TAX;
netincome = salary - tax;
}
printf("There is your salary, tax and net income information.\n");
printf("Salary : %.3lf",salary);
printf("\nTax : %.3lf",tax);
printf("\nNet income : %.3lf",netincome);
return 0;
}
/*
輸出樣例
Please enter your working hours in a week : 300
There is your salary, tax and net income information.
Salary : 4300.000
Tax : 1037.500
Net income : 3262.500
Please enter your working hours in a week : 450
There is your salary, tax and net income information.
Salary : 6550.000
Tax : 1600.000
Net income : 4950.000
Please enter your working hours in a week : 521.73
There is your salary, tax and net income information.
Salary : 7625.950
Tax : 1868.988
Net income : 5756.963
*/
/*C Primer Plus (7.12) 8*/
#include<stdio.h>
#include<stdbool.h>
#define EXTRA_WORK 1.5
#define NORMAL_TAX 0.15
#define EXTRA_TAX 0.20
#define OTHER_TAX 0.25
void quit ();
void menu ();
void Salary (double Bsalary , double worktime);
int choice = 0;
double worktime = 0.0;
int main()
{
while (true)
{
menu ();
switch(choice)
{
case 1 :
{
Salary(8.75,worktime);
break;
}
case 2 :
{
Salary(9.33,worktime);
break;
}
case 3 :
{
Salary(10.00,worktime);
break;
}
case 4 :
{
Salary(11.20,worktime);
break;
}
case 5 :
{
quit();
printf("Done.");
return 0;
}
}
}
}
void quit()
{
printf("\t\t\n************************************************\t\t\n");
printf("|| ||");
printf("\n|| ||");
printf("\n|| Thank you to use this programme! ||");
printf("\n|| ||");
printf("\n|| ||");
printf("\t\t\n************************************************\t\t\n");
}
void menu()
{
printf("\t\t\n*****************************************************************\t\t\n");
printf("Enter the number corresponding to the desired pay rate or action:\n");
printf("1) $8.75/hr 2) $9.33/hr");
printf("\n3) $10.00/hr 4) $11.20/hr\n");
printf("5) quit");
printf("\t\t\n*****************************************************************\t\t\n");
printf("Please enter your options: ");
scanf("%d",&choice);
while (choice != 1 && choice != 2 && choice != 3 && choice != 4 && choice != 5)
{
printf("Please enter the right choice:");
scanf("%d",&choice);
}
}
void Salary(double Bsalary , double worktime)
{
double tax,netincome,salary;
salary = tax = netincome = 0.0;
printf("Please enter your working hours in a week : ");
while (scanf("%lf",&worktime) != 1 || worktime <= 0)
{
while (getchar() != '\n') continue;
printf("Please enter a right number( >= 0 ).");
}
salary = worktime > 40 ? (40.00 * Bsalary) + (1.5 * (worktime - 40)) * Bsalary : worktime * Bsalary;
if (salary <= 300)
{
tax = 300.00 * NORMAL_TAX;
netincome = salary - tax;
}
else if (salary <= 450)
{
tax = 300.00 * NORMAL_TAX + (salary - 300.00) * EXTRA_TAX;
netincome = salary - tax;
}
else
{
tax = 300.00 * NORMAL_TAX + 150.00 * EXTRA_TAX + (salary - 450.00) * OTHER_TAX;
netincome = salary - tax;
}
printf("There is your salary, tax and net income information.\n");
printf("Salary : %.3lf",salary);
printf("\nTax : %.3lf",tax);
printf("\nNet income : %.3lf",netincome);
}
/*
輸出樣例
*****************************************************************
Enter the number corresponding to the desired pay rate or action:
1) $8.75/hr 2) $9.33/hr
3) $10.00/hr 4) $11.20/hr
5) quit
*****************************************************************
Please enter your options: 2
Please enter your working hours in a week : 600
There is your salary, tax and net income information.
Salary : 8210.400
Tax : 2015.100
Net income : 6195.300
*****************************************************************
Enter the number corresponding to the desired pay rate or action:
1) $8.75/hr 2) $9.33/hr
3) $10.00/hr 4) $11.20/hr
5) quit
*****************************************************************
Please enter your options: 1
Please enter your working hours in a week : 325.44
There is your salary, tax and net income information.
Salary : 4096.400
Tax : 986.600
Net income : 3109.800
*****************************************************************
Enter the number corresponding to the desired pay rate or action:
1) $8.75/hr 2) $9.33/hr
3) $10.00/hr 4) $11.20/hr
5) quit
*****************************************************************
Please enter your options: 5
************************************************
|| ||
|| ||
|| Thank you to use this programme! ||
|| ||
|| ||
************************************************
Done.
*/
/*C Primer Plus (7.12) 9*/
1 #include<stdio.h>
2 int Prime (int x)
3 {
4 int index = 0;
5 for (index = 2; index < x; index++)
6 {
7 if (x % index == 0)
8 return 0;
9 }
10 return 1;
11 }
12
13 int main()
14 {
15 int num;
16 printf("Please enter a number (<= 0 to quit) : ");
17 while (scanf("%d",&num) ==1 && num > 0)
18 {
19 if (num == 1)
20 {
21 printf("This number is not a prime.");
22 }
23 else
24 {
25 printf("These are prime numbers less than %d : ",num);
26 for (int index = 2; index < num; index++)
27 if (Prime(index))
28 {
29 printf("%-5d",index);
30 }
31 }
32 printf("\nNow you can enter again : ");
33 }
34 printf("That's all.");
35
36 return 0;
37 }
38 /*
39 輸出樣例
40
41 Please enter a number (<= 0 to quit) : 15
42 These are prime numbers less than 15 : 2 3 5 7 11 13
43 Now you can enter again : 40
44 These are prime numbers less than 40 : 2 3 5 7 11 13 17 19 23 29 31 37
45 Now you can enter again : 0
46 That's all.
47
48 */
/*C Primer Plus (7.12) 10*/
1 #include<stdio.h>
2 #include<stdbool.h>
3 #define Choice1 17850
4 #define Choice2 23900
5 #define Choice3 29750
6 #define Choice4 14875
7 #define TAX1 0.15
8 #define TAX2 0.28
9 void MENU();
10 void QUIT();
11 double TAX_PLAN1 (double money, double Ctax);
12 double TAX_PLAN2 (double money1, double Ctax1);
13 double TAX_PLAN3 (double money2, double Ctax2);
14 double TAX_PLAN4 (double money3, double Ctax3);
15 int choice = 0;
16 double income = 0.0;
17 double tax = 0.0;
18 double tax1 = 0.0;
19 double tax2 = 0.0;
20 double tax3 = 0.0;
21
22 int main()
23 {
24 while (true)
25 {
26 MENU();
27
28 switch (choice)
29 {
30 case 1 :
31 {
32 TAX_PLAN1 (income, tax);
33 break;
34 }
35 case 2 :
36 {
37 TAX_PLAN2 (income, tax1);
38 break;
39 }
40 case 3 :
41 {
42 TAX_PLAN3 (income, tax2);
43 break;
44 }
45 case 4 :
46 {
47 TAX_PLAN4 (income, tax3);
48 break;
49 }
50 case 5 :
51 {
52 QUIT();
53 return 0;
54 }
55 }
56 }
57
58 }
59 void MENU()
60 {
61 printf("************************************************************");
62 printf("\nPlease enter your choice.\n");
63 printf("(1) Single (2) Head of household\n");
64 printf("(3) Married, jointly owned (4) Married, divorced\n");
65 printf("(5) Quit\n");
66 printf("************************************************************\n");
67 printf("Please enter your choice : ");
68 scanf("%d",&choice);
69 while (choice != 1 && choice != 2 && choice != 3 && choice != 4 && choice != 5)
70 {
71 printf("Please enter the right choice:");
72 scanf("%d",&choice);
73 }
74 }
75
76 void QUIT()
77 {
78 printf("\t\t\n************************************************\t\t\n");
79 printf("|| ||");
80 printf("\n|| ||");
81 printf("\n|| Thank you to use this programme! ||");
82 printf("\n|| ||");
83 printf("\n|| ||");
84 printf("\t\t\n************************************************\t\t\n");
85 }
86
87 double TAX_PLAN1 (double money, double Ctax)
88 {
89 double income, tax;
90 income = tax = 0;
91 printf("Please enter your income (<= 0 to quit) : ");
92 while (scanf("%lf",&income) == 1 && income > 0)
93 {
94 if (income <= Choice1)
95 {
96 tax = income * TAX1;
97 printf("This is your tax : %g$\n",tax); break;
98 }
99 else
100 {
101 tax = (Choice1 * TAX1)+(income - Choice1) * TAX2;
102 printf("This is your tax : %g$\n",tax); break;
103 }
104 }
105 }
106
107 double TAX_PLAN2 (double money1, double Ctax1)
108 {
109 double income, tax1;
110 income = tax1 = 0;
111 printf("Please enter your income (<= 0 to quit) : ");
112 while (scanf("%lf",&income) == 1 && income > 0)
113 {
114 if (income <= Choice2)
115 {
116 tax1 = income * TAX1;
117 printf("This is your tax : %g$\n",tax1); break;
118 }
119 else
120 {
121 tax1 = (Choice2 * TAX1) + (income - Choice2) * TAX2;
122 printf("This is your tax : %g$\n",tax1); break;
123 }
124 }
125 }
126
127 double TAX_PLAN3 (double money2, double Ctax2)
128 {
129 double income, tax2;
130 income = tax2 = 0;
131 printf("Please enter your income (<= 0 to quit) : ");
132 while (scanf("%lf",&income) == 1 && income > 0)
133 {
134 if (income <= Choice3)
135 {
136 tax2 = income * TAX1;
137 printf("This is your tax : %g$\n",tax2); break;
138 }
139 else
140 {
141 tax2 = (Choice3 * TAX1)+(income - Choice3) * TAX2;
142 printf("This is your tax : %g$\n",tax2); break;
143 }
144 }
145 }
146
147 double TAX_PLAN4 (double money3, double Ctax3)
148 {
149 double income, tax3;
150 income = tax3 = 0;
151 printf("Please enter your income (<= 0 to quit) : ");
152 while (scanf("%lf",&income) == 1 && income > 0)
153 {
154 if (income <= Choice4)
155 {
156 tax3 = income * TAX1;
157 printf("This is your tax : %g$\n",tax3); break;
158 }
159 else
160 {
161 tax3 = (Choice4 * TAX1)+(income - Choice4) * TAX2;
162 printf("This is your tax : %g$\n",tax3); break;
163 }
164 }
165 }
166 /*
167 輸出樣例
168
169 ************************************************************
170 Please enter your choice.
171 (1) Single (2) Head of household
172 (3) Married, jointly owned (4) Married, divorced
173 (5) Quit
174 ************************************************************
175 Please enter your choice : 1
176 Please enter your income (<= 0 to quit) : 20000
177 This is your tax : 3279.5$
178 ************************************************************
179 Please enter your choice.
180 (1) Single (2) Head of household
181 (3) Married, jointly owned (4) Married, divorced
182 (5) Quit
183 ************************************************************
184 Please enter your choice : 6
185 Please enter the right choice:2
186 Please enter your income (<= 0 to quit) : 35415
187 This is your tax : 6809.2$
188 ************************************************************
189 Please enter your choice.
190 (1) Single (2) Head of household
191 (3) Married, jointly owned (4) Married, divorced
192 (5) Quit
193 ************************************************************
194 Please enter your choice : 5
195
196 ************************************************
197 || ||
198 || ||
199 || Thank you to use this programme! ||
200 || ||
201 || ||
202 ************************************************
203
204 */
/*C Primer Plus (7.12) 11*/
1 #include<stdio.h>
2 #include<ctype.h>
3 #define Pr_artichoke 2.05 //洋薊的價格（美元/磅）
4 #define Pr_beet 1.15 //甜菜的價格（美元/磅）
5 #define Pr_carrot 1.09 //胡蘿蔔的價格（美元/磅）
6 #define Discount 0.05 //折扣
7 #define Under5 6.5 //低於或等於5磅的運輸和包裝費
8 #define Under20 14.00 //5-20磅的運輸和包裝費
9 #define Basic20 14.00 //20磅的運輸和包裝費
10 #define Extratax 0.50 //超過20磅每重一磅就增加0.5$
11 #define Bweight 20.00 //20磅
12
13 void MENU();
14
15 char choice;
16
17 int main()
18 {
19 double P_artichoke = 0.0; //洋薊的磅數
20 double P_beet = 0.0; //甜菜的磅數
21 double P_carrot = 0.0; //胡蘿蔔的磅數
22 double weight = 0.0; //重量統計
23 double T_weight = 0.0; //總重量
24 double M_artichoke = 0.0; //洋薊的總價格
25 double M_beet = 0.0; //甜菜的總價格
26 double M_carrot = 0.0; //胡蘿蔔的總價格
27 double P_total = 0.0; //三種蔬菜花費的錢
28 double R_total = 0.0; //算過折扣和包裝費之後的錢
29 double P_discount = 0.0; //折扣
30 double P_trans_and_package = 0.0; //運輸和包裝費的錢
31
32 MENU();
33
34 while ((choice = tolower(getchar())) != 'q') //ctype函數(tolower 大寫字符返回小寫字符)
35 {
36 if (isspace(choice)) //檢測空白符
37 {
38 continue;
39 }
40 while (getchar() != '\n')
41 {
42 continue;
43 }
44 switch (choice)
45 {
46 case 'a' :
47 {
48 printf("Enter pounds of artichokes : ");
49 scanf("%lf",&weight);
50 P_artichoke += weight;
51 break;
52 }
53 case 'b' :
54 {
55 printf("Enter pounds of beets : ");
56 scanf("%lf",&weight);
57 P_beet += weight;
58 break;
59 }
60 case 'c' :
61 {
62 printf("Enter pounds of carrots : ");
63 scanf("%lf",&weight);
64 P_carrot += weight;
65 break;
66 }
67 default :
68 {
69 printf("%c is not a valid choice.\n",choice);
70 printf("Please enter a positive choice : \n");
71 }
72 }
73 MENU();
74 }
75
76 M_artichoke = Pr_artichoke * P_artichoke; //洋薊的購買的總價錢
77 M_beet = Pr_beet * P_beet; //甜菜購買的總價錢
78 M_carrot = Pr_carrot * P_carrot; //胡蘿蔔購買的總價錢
79 P_total = M_artichoke + M_beet + M_carrot; //三種蔬菜在一起的總價錢
80 T_weight = P_artichoke + P_beet + P_carrot; //三種蔬菜在一起的總重量
81
82 if (P_total >= 100.0) //打折的費用
83 {
84 P_discount = P_total * Discount;
85 }
86 else
87 {
88 P_discount = 0.0;
89 }
90
91 if (T_weight <= 0.0)
92 {
93 P_trans_and_package = 0.0;
94 }
95 else if (T_weight < 5.0) //計算包裝和運輸費的費用
96 {
97 P_trans_and_package = Under5;
98 }
99 else if (T_weight < 20.0)
100 {
101 P_trans_and_package = Under20;
102 }
103 else
104 {
105 P_trans_and_package = Basic20 + Extratax * (T_weight - Bweight);
106 }
107 R_total = P_total + P_trans_and_package - P_discount;
108
109 printf("\n\n**********************************************************************\n");
110 //蔬菜的報價（美元/磅）
111 printf("The price of artichokes is : $%.2lf per pound.\n",Pr_artichoke);
112 printf("The price of beets is : $%.2lf per pound.\n",Pr_beet);
113 printf("The price of carrots is : $%.2lf per pound.\n",Pr_carrot);
114 //購買蔬菜分開的價格以及一共的價格和購買的磅數
115 printf("You bought %.2lf pounds artichokes. "
116 "And the price is : %.2lf$\n",P_artichoke,M_artichoke);
117 printf("You bought %.2lf pounds beets. "
118 "And the price is : %.2lf$\n",P_beet,M_beet);
119 printf("You bought %.2lf pounds carrots. "
120 "And the price is : %.2lf$\n",P_carrot,M_carrot);
121 printf("The total weight is : %.2lf pound.\n",T_weight);
122 printf("The total cost of vegetables : %.2lf$\n",P_total);
123 printf("Discount : %.2lf$\n",P_discount);
124 printf("The price of transport and package : %.2lf$\n",P_trans_and_package);
125 printf("The last money spent is : %.2lf$\n",R_total);
126 printf("**********************************************************************\n");
127
128 return 0;
129 }
130
131 void MENU()
132 {
133 printf("**********************************************************************\n");
134 printf("Enter letters to complete the response.\n");
135 printf("(a) Buy artichokes (b) Buy beets\n");
136 printf("(c) Buy carrots\n");
137 printf(" Enter q to quit.\n");
138 printf("**********************************************************************\n");
139 printf("Please enter your choice : ");
140 }
141 /*
142 輸出樣例
143
144 **********************************************************************
145 Enter letters to complete the response.
146 (a) Buy artichokes (b) Buy beets
147 (c) Buy carrots
148 Enter q to quit.
149 **********************************************************************
150 Please enter your choice : a
151 Enter pounds of artichokes : 96.5
152 **********************************************************************
153 Enter letters to complete the response.
154 (a) Buy artichokes (b) Buy beets
155 (c) Buy carrots
156 Enter q to quit.
157 **********************************************************************
158 Please enter your choice : v
159 v is not a valid choice.
160 Please enter a positive choice :
161 **********************************************************************
162 Enter letters to complete the response.
163 (a) Buy artichokes (b) Buy beets
164 (c) Buy carrots
165 Enter q to quit.
166 **********************************************************************
167 Please enter your choice : b
168 Enter pounds of beets : 66.7
169 **********************************************************************
170 Enter letters to complete the response.
171 (a) Buy artichokes (b) Buy beets
172 (c) Buy carrots
173 Enter q to quit.
174 **********************************************************************
175 Please enter your choice : c
176 Enter pounds of carrots : 123.64
177 **********************************************************************
178 Enter letters to complete the response.
179 (a) Buy artichokes (b) Buy beets
180 (c) Buy carrots
181 Enter q to quit.
182 **********************************************************************
183 Please enter your choice : q
184
185
186 **********************************************************************
187 The price of artichokes is : $2.05 per pound.
188 The price of beets is : $1.15 per pound.
189 The price of carrots is : $1.09 per pound.
190 You bought 96.50 pounds artichokes. And the price is : 197.82$
191 You bought 66.70 pounds beets. And the price is : 76.70$
192 You bought 123.64 pounds carrots. And the price is : 134.77$
193 The total weight is : 286.84 pound.
194 The total cost of vegetables : 409.30$
195 Discount : 20.46$
196 The price of transport and package : 147.42$
197 The last money spent is : 536.25$
198 **********************************************************************
199
200 */
标签：ch,int,double,printf,choice,編程,Plus,enter,Primer From： https://www.cnblogs.com/NoldorFromMiddleEarth/p/17087833.html