// CPP code to demonstrate// int string::compare(size_type idx, size_type len,// const string& str) const#include<iostream>usingnamespacestd;voidcompareOperation(strings1,strings2){// Compares 5 characters from index number 3 of s2 with s1if((s2.compare(3,5, s1)) ==0)cout<<"Here,...
第二个就是这篇在stackoverflow上的文章 https://stackoverflow.com/questions/198431/how-do-you-co...
使用compare() // CPP code to perform comparison using compare()#include<iostream>usingnamespacestd;voidusingCompare(string str1,string str2){// Direct Comparisonif(str1.compare(2,3,str2,3,3)==0)cout<<"Both are same";elsecout<<"Not equal";}// Main functionintmain(){strings1(...
cpp #include <iostream> #include <string> int main() { std::string s1 = "hello"; std::string s2 = "world"; std::string s3 = "hello"; // 比较两个完整的字符串 int result1 = s1.compare(s2); if (result1 == 0) { std::cout << "s1 is equal to s2"...
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> ...
cppreference's std::string::compare page has an example you might want to take a look at: https://en.cppreference.com/w/cpp/string/basic_string/compare Jan 4, 2022 at 6:15pm seeplus(6620) Just for info. .compare() is similar to the c function strcmp() where the result is either...
例子1 #include<iostream>usingnamespacestd;voidmain(){stringstr1="Hello";stringstr2="javatpoint";intk= str1.compare(str2);if(k==0)cout<<"Both the strings are equal";elsecout<<"Both the strings are unequal"; } 输出: Both the strings are unequal ...
string str(“abcd”); str.compare(“abcd”); //str和“abcd”比较,相同返回0 str.compare(“dcba”); //返回一个小于0的值 str.compare(“ab”); //返回大于0的值 str.compare(s); //相等,返回0 str.compare(0,2,str,2,2); //用str从0开始的两位和str从2开始的两位比较,返回小于0的数 st...
intstring::compare (size_type idx, size_type len,conststring&str, size_type str_idx, size_type str_len)constThrows out_of_rangeifidx >size(). Throws out_of_rangeifstr_idx > str.size(). //CPP code to demonstrate//int string::compare (size_type idx, size_type len, const string&...
string类型可使用 compare(const string& str) 方法进行字符串比较。 2.3 string对象判空 可使用 empty() 方法对string类型的对象进行判空,如下: 代码语言:javascript 代码运行次数:0 运行 AI代码解释 if (str2.empty()) { cout << "str2 is empty." << endl; } 2.4 char*、char[]转换为string 将char...