自己实现的strcmp函数

#include <iostream>

using namespace std;

// 自己实现strcmp函数

int Strcmp(char to[], char from[]);

int main()

{

char to[30], from[30];

int flag;

cout << "请输入第一个字符串：";

cin >> to;

cout << "请输入第二个字符串：";

cin >> from;

flag = Strcmp(to, from);

if (1 == flag)

cout << to << "大于" << from << endl;

else if (0 == flag)

cout << to << "等于" << from << endl;

else

cout << to << "小于" << from << endl;

system("pause");

return 0;

}

int Strcmp(char to[], char from[])

{

int i = 0;

for (; ‘\0‘ != to[i]  && ‘\0‘ != from[i]; i++)

if (to[i] > from[i])

return 1;

else if (to[i] < from[i])

return -1;

if (‘\0‘ == to[i])

return -1;

else if (‘\0‘ == from[i])

return 1;

else

return 0;

}