1 #include<stdio.h>
2 #include<stdlib.h>
3 #include<string.h>
4
5 void left_rotate(char *str, int k)
6 {
7 int len=strlen(str);
8 k %= len;//减少重复次数
9
10 char temp = 0;
11 char *cur = str;
12 while (k--)
13 {
14
15 //左旋一次
16 temp = *str;
17 cur = str;
18 while (*(cur + 1) != '\0')
19 {
20 //每个字符向前推一个
21 *cur = *(cur + 1);
22 cur++;
23 }
24
25 *cur = temp;
26 }
27 }
28
29
30
31 int main()
32 {
33 char str[100] = "abcdefg";
34 left_rotate(str, 2);
35 printf("%s\n", str);
36
37 system("pause");
38 return 0;
39
40 }
