Syntax 1:Erases all characters in a string string&string::erase () cpp output: Before erase() : Hello World!After erase() : Syntax 2:Erases all characters after position ‘pos’ string&string::erase (size_type pos)- Throw out_of_rangeifidx > size(). ...
s1.insert(0,cp); //执行完后,s1为" valuevalue" 2.5 string类中的erase()删除成员函数 几种删除形式:有下标版本 也有迭代器版本 一共三种形式: basic_string & erase(size_type pos=0, size_type n=npos) 解释:如果string对象s调用,它删除s从pos下标开始的n个字符,并返回删除后的s。当pos > s.size...
(1)string& erase ( size_t pos = 0, size_t n = npos ); (2)iterator erase ( iterator position ); (3)iterator erase ( iterator first, iterator last ); 也就是说有三种用法: (1)erase(pos,n); 删除从pos开始的n个字符,比如erase(0,1)就是删除第一个字符 (2)erase(position);删除positio...
📌erase()函数 📌find()函数 📌substr()函数 📌clear()函数 📌swap()函数 🎏实现string类运算符重载 📌operator []运算符重载 无const修饰的类对象 有const修饰的类对象 📌operator +=运算符重载 📌operator<<运算符重载 📌operator>>运算符重载 📌operator <运算符重载 📌operator ==运算符...
// erase() str.erase(7, 10); std::cout << "String after erase: " << str << std::endl; // clear() str.clear(); std::cout << "String after clear: " << (str.empty() ? "Empty" : "Not empty") << std::endl; // c_str() str = "Hello, C++!"; const char* cstr ...
eraseis astd::stringmember function that can be utilized to remove the given characters from the string. It has three overloads, each of which we are going to discuss in the following examples. The first overload accepts two arguments ofsize_typetype denoting theindexand thecount. This versi...
std::string::erase in C++ 函数擦除部分字符串内容,缩短字符串长度。受影响的字符取决于使用的成员函数版本: 返回值:erase() 返回 *this。 语法1:删除字符串中的所有字符 string& string ::erase () CPP // CPP code to illustrate // erase() function #include <iostream> #include <string> using...
// string::erase#include <iostream>#include <string>int main (){std::string str ("This is an example sentence.");std::cout << str << '\n';// "This is an example sentence."str.erase (10,8); // ^^^std::cout << str << '\n';// "This is an sentence."str.erase (str...
返回值:erase()返回* this。 语法1:擦除字符串中的所有字符 string& string::erase() // CPP code to illustrate//erase() function#include<iostream>#include<string>usingnamespacestd;// Function to demoerase()voideraseDemo(stringstr){// Deletes all charactersstr.erase();cout<<"Aftererase():"...
(size_t pos, char c); string& insert(size_t pos, const char* str); // 删除pos位置上的长度个字符 string& erase(size_t pos, size_t len=npos); private: char* _str; size_t _capacity; size_t _size; static const size_t npos; }; //初始化静态私有成员变量 const size_t string::...