#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...
assign(str5); //用n个字符c赋给当前字符串 string str7; str7.assign(5, 'c'); } 4、string字符串拼接 void test01() { string str1 = "我"; str1 += "爱XX"; cout << "str=" << str1 << endl; str1+='c'; string str2="LOL"; str1+=str2; } in 5、string查找替换 void...
#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...
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...
C++ STL - Sort an array or vector Get first & last elements of an array C++ STL String C++ STL - std::string C++ STL - String Assignment C++ STL - string::assign() C++ STL - string::length() C++ STL - std::string::compare() C++ STL - Convert numeric to string C++ STL - Appe...
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...
;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...
2.5.7 compare 2.6 非成员函数接口 2.6.1 getline 3.string模拟实现 3.1经典string类问题 3.2 浅拷贝和深拷贝 3.3 string模拟实现代码(常用接口) C语言中,字符串是以'\0'结尾的一些字符的集合,为了操作方便,C标准库中提供了一些str系列的库函数, 但是这些库函数与字符串是分离开的,不太符合OOP的思想,而且底层...