C++字符串的比较

#include<iostream> #include<string>

using namespace std;

int Compare(string &str1, string &str2); void main() {  string str1, str2;  cin >> str1;  cin >> str2;  if (Compare(str1, str2) == 1) {   cout << "两个字符串一样" << endl;  }  else  {   cout << "两个字符串不一样" << endl;  }

 system("pause"); } int Compare(string &str1, string &str2) {  int i=0 ,j=0;  while (str1[i] != '\0') {   i++; }  while (str2[j] != '\0') {   j++;  }  if (i == j) {   for (int m = 0; m <= i; )   {    if (str1[m] == str2[m] || str1[m] == str2[m] + 32 || str1[m] == str2[m] - 32) {     m++;     if (m == i) {      return 1;    }    }    else    {     return 0;    }   }

 }  else  {   return 0;  }

}