//第一种方法
void left_reverse(char *str,int k)
{
assert(str);
char*Psrc = str;
int len = strlen(str);
while (k--)
{
char ret = Psrc[0];
for (int i = 0; i < len-1; i++)
{
Psrc[i] = Psrc[i+1];
}
Psrc[len-1] = ret;
}
}
int main()
{
char str[] = "asddf";
left_reverse(str,2);
printf("%s\n",str);
system("pause");
}
//三步旋转法
char* left_reverse(char *str, int k)
{
assert(str);
int len = strlen(str);
*(str + k + len) = '\0';
return (str + k);
}
int main()
{
char str[20] = "asddf";
char* ret = left_reverse(str, "asddf");
/*char* ret = strcat(str, str1);*/
printf("%s\n",ret);
system("pause");
}