循环语句-while-练习题

 1 '''
 2 练习 while循环
 3 其实就是练习手感，不停的敲
 4 '''
 5 
 6 '''
 7 1. 打印星号(三⻆形)
 8 *
 9 **
10 ***
11 ****
12 *****
13 找规律，弄懂需求：5行5列，只显示了column <= row。显示的内容是*
14 解决：2个循环搞定 
15 '''
16 
17 row = 1
18 while row <= 5:
19 
20     column = 1
21     while column <= row:
22         print("*", end='')
23         column += 1
24     print()
25     row += 1
26 
27 '''
28 打印99乘法表
29 1 * 1 = 1    
30 2 * 1 = 2    2 * 2 = 4    
31 3 * 1 = 3    3 * 2 = 6    3 * 3 = 9    
32 4 * 1 = 4    4 * 2 = 8    4 * 3 = 12    4 * 4 = 16    
33 5 * 1 = 5    5 * 2 = 10    5 * 3 = 15    5 * 4 = 20    5 * 5 = 25    
34 6 * 1 = 6    6 * 2 = 12    6 * 3 = 18    6 * 4 = 24    6 * 5 = 30    6 * 6 = 36    
35 7 * 1 = 7    7 * 2 = 14    7 * 3 = 21    7 * 4 = 28    7 * 5 = 35    7 * 6 = 42    7 * 7 = 49    
36 8 * 1 = 8    8 * 2 = 16    8 * 3 = 24    8 * 4 = 32    8 * 5 = 40    8 * 6 = 48    8 * 7 = 56    8 * 8 = 64    
37 9 * 1 = 9    9 * 2 = 18    9 * 3 = 27    9 * 4 = 36    9 * 5 = 45    9 * 6 = 54    9 * 7 = 63    9 * 8 = 72    9 * 9 = 81    
38 找规律
39 1. 首先9 X 9 的表格
40 2. 每行都是： 列c从1开始 && 小于等于行号r， 都有r表达式，表达式内容是1 * r、2 * r、……  r*r
41 
42 '''
43 row = 1
44 while row <= 9:
45     column = 1
46     while column <= row:
47         print(column * row, end='\t')
48         # print(f"{row} * {column} = {column * row}", end='\t')
49         column += 1
50     print()
51     row += 1