怎么用c++编写一个判断字符串长度的程序？

Question

如题所述

Answer 1

//C++计算字符串长度的程序怎么编的？
#include<iostream.h>
#include<string.h>
int length(char *pstr)
{
int count = 0, i = 0;
while(pstr[i] != '\0'){
count++;
i++;
}
return count;
}

void main()
{
char *s1 = new char[20];
strcpy(s1, "Moon is the best!");
cout << length(s1) << endl;
}