c++string字符串比较

#include<iostream>
#include<string>
using namespace std;


/*
int compare(const string& s) const;
int compare(const char* s) const;
*/
void test() {
	
	string str1 = "abcde";
	string str2 = "abcde";
	string str3 = "b";
	cout << str1.compare(str2);//0  compare()相等放回0
	cout << str1.compare(str3);//-1 compare()小于放回-1
	cout << str3.compare(str1);//1  compare()大于放回1
	
}

int main() {
	test();
	return 0;
}