// 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,...
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(...
std::string str2("red apple");//1.str1和str2比较:参数形式1if(str1.compare(str2) !=0) std::cout << str1 <<" is not "<< str2 <<'\n';//2.str1的下标6开始的5个字符和"apple"比较:参数形式5if(str1.compare(6,5,"apple") ==0) std::cout <<"still, "<< str1 <<" is...
第二个就是这篇在stackoverflow上的文章 https://stackoverflow.com/questions/198431/how-do-you-co...
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"...
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 ...
https://en.cppreference.com/w/cpp/string/basic_string/compare Jan 4, 2022 at 6:15pm seeplus(6597) Just for info. .compare() is similar to the c function strcmp() where the result is either < 0 (less than), - (equal), > 0 (greater). ...
另一个功能强大的比较函数是成员函数compare()。他支持多参数处理,支持用索引值和长度定位子串来进行比较。他返回一个整数来表示比较结果,返回值意义如下:0-相等 〉0-大于 <0-小于。举例如下: string字符串使用方法都类似strings("abcd"); s.compare("abcd");//返回0s.compare("dcba");//返回一个小于0的值...
compare() 比较两个字符串。 int result = str.compare("other"); find_first_of() 查找第一个匹配任意字符的位置。 size_t pos = str.find_first_of("aeiou"); find_last_of() 查找最后一个匹配任意字符的位置。 size_t pos = str.find_last_of("aeiou"); find_first_not_of() 查找第一个不...
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&...