一维字符数组

一维字符数组初始化

逐个元素初始化(不推荐)

char arr[5] = {'h', 'e', 'l', 'l', 'o'};

以字符串方式初始化(推荐)

char arr[6] = "hello";

以上两种区别

sizeof测字符数组

char arr1[16] = "";
cout << sizeof(arr1) << endl; //16

char arr2[] = "hello";
cout << sizeof(arr2) << endl; //6

字符数组遍历

循环方式逐个遍历

char arr[6] = "hello";
int i = 0;
for(i = 0; i<6; i++)
{
 		cout << arr[i];
}

使用cout直接输出字符串 遇到'\0'结束

char arr1[] = "hello";
cout << arr1; //hello

char arr2[] = "hel\0lo";
cout << arr2; //hel

键盘获取字符串

cin获取字符串 遇到空格或回车结束

char str[16] = "";
cin >> str; //hello world
cout << str; //hello

cin.getline获取带空格的字符串

char str[16] = "";
cin.getline(str, sizeof(str)); //hello c++
cout << str; //hello c++