【华为面试题】求输入字符串的长度（指针）

#include <stdio.h>

//---------------------------------------------------------------------------
//求输入字符串的长度
#pragma argsused
int main(int argc, char* argv[])
{
char str[20], *p;
int len;
printf("Please input a string: \n");
gets(str);
p = str;
len = 0;
while(*p++)
{
len++;
}
printf("The length of input string is: %d", len);

return 0;
}
//---------------------------------------------------------------------------