#include <iostream>#include <string>int main() {std::string str = "helloworld";int result = str.compare(0, 5, "hello");if (result < 0) {std::cout << "The substring is less than \"hello\"." << std::endl;} else if (result > 0) {std::cout << "The substring is greater ...
string::compare()is a standard library function that is used to compare between two strings or b/w two substrings as per use cases. Syntax int compare (const string& str) const; The invoking string is thecompared stringand the stringstrwhich is passed in the argument is the compared strin...
compare(str2)==0) { cout<<"str1等于str2"<<endl; } 7、string 插入和删除 string str="hello"; //插入 str.insert(1,"111"); //h111ello //删除 str.erase(1,3); //hello 8、string截取子串 string str="abcdefg"; string suBstr=str.substr(1,3);//bcd ...
#include<iostream>#include<string>intmain(){std::string str="helloworld";int result=str.compare(0,5,"hello");if(result<0){std::cout<<"The substring is less than \"hello\"."<<std::endl;}elseif(result>0){std::cout<<"The substring is greater than \"hello\"."<<std::endl;}else...
"Include" < "India" as 'c' < 'd' Header file needed #include <string> Or #include <bits/stdc++.h> C++ program to compare two strings using comparison operator (==) #include <bits/stdc++.h>usingnamespacestd;voidcompare(string a, string b) {if(a==b) ...
2.8 string类中的compare()比较成员函数 2.9 字符串与数值之间的转换成员函数 3.力扣题目:“字符串解码” 其本身包含诸多string类基本成员函数的使用 1.string类的初始化操作 首先,在cpp中使用string类 一定需要导入其官方提供的头文件:#include <string> ...
int compare(const string &s) const;//比较当前字符串和s的大小 int compare(int pos, int n,const string &s)const;//比较当前字符串从pos开始的n个字符组成的字符串与s的大小 int compare(int pos, int n,const string &s,int pos2,int n2)const;//比较当前字符串从pos开始n个字符字符串与s中pos...
compare函数在>时返回1,<时返回-1,==时返回0 string的子串:stringsubstr(intpos =0,intn = npos)const;//返回pos开始的n个字符组成的字符串string的交换:voidswap(string&s2);//交换当前字符串与s2的值string类的查找函数:intfind(charc,intpos =0)const;//从pos开始查找字符c在当前字符串的位置intfind...
C++ 标准库(Standard Template Library, STL)是 C++ 的核心组成部分之一,提供了丰富的数据结构和算法。 <string> 是C++ 标准库中用于处理字符串的头文件。在C++ 中,字符串是由字符组成的序列。<string> 头文件提供了 std::string 类,它是对 C 风格字符串的封装,提供了更安全、更易用的字符串操作功能。
;compare函数在>时返回1,<时返回-1,==时返回0 string的子串:string substr(int pos = 0,int n = npos) const;//返回pos开始的n个字符组成的字符串string的交换:void swap(string &s2); //交换当前字符串与s2的值string类的查找函数:int find(char c, int pos = 0) const;//从pos开始查找字符c在...