在 C++ 中比较两个字符串
这里我们将了解如何在 C++ 中比较两个字符串。C++ 具有 string 类。它在标准库中还有 compare() 函数用于比较字符串。此函数会逐个字符检查字符串,如果存在某些不匹配,则会返回非零值。让我们看看代码以获得更好的想法。
示例
#include<iostream>
using namespace std;
void compareStrings(string s1, string s2) {
int compare = s1.compare(s2);
if (compare != 0)
cout << s1 << " is not equal to "<< s2 << endl;
else if(compare == 0)
cout << "Strings are equal";
if (compare > 0)
cout << s1 << " is greater than "<< s2 << " difference is: " << compare << endl;
else if(compare < 0)
cout << s2 << " is greater than "<< s1 << " difference is: " << compare << endl;
}
int main() {
string s1("hello");
string s2("helLo");
compareStrings(s1, s2);
}输出
hello is not equal to helLo hello is greater than helLo difference is: 1
广告
数据结构
网络
RDBMS
操作系统
Java
iOS
HTML
CSS
Android
Python
C 编程
C++
C#
MongoDB
MySQL
Javascript
PHP