使用std::string::erase 函数删除字符串中的指定字符 erase 是一个 std::string 成员函数,可用于从字符串中删除给定的字符。它有三个重载,我们将在下面的例子中讨论每一个。 第一个重载接受两个 size_type 类型的参数,分别表示 index 和count。此版本将尝试擦除从 index 位置开始的 count 个字符,但在某些情况...
string& string::erase () // CPP code to illustrate // erase() function #include <iostream> #include <string> using namespace std; // Function to demo erase() void eraseDemo(string str) { // Deletes all characters str.erase(); cout << "After erase():"; cout << str; } // Dr...
string&string::erase() CPP // CPP code to illustrate // erase() function #include<iostream> #include<string> usingnamespacestd; // Function to demo erase() voideraseDemo(stringstr) { // Deletes all characters str.erase(); cout<<"After erase() : "; cout<<str; } // Driver code ...
#include<iostream>#include<string>usingstd::cout;usingstd::cin;usingstd::endl;usingstd::string;intmain(){stringtext="Lorem ipsum dolor sit amet, consectetur adipiscing elit.";text.erase(std::find(text.begin(), text.end(),','));cout<<text<<endl;text.erase(text.end()-5);cout<<text<...
string&string::erase (size_type pos)- Throw out_of_rangeifidx > size(). cpp output: Before erase(idx) : Hello World! After erase(idx) : H Syntax 3:Erases at most, len characters of *this, starting at index idx. string&string::erase (size_type idx, size_type len )- If lenis...
// std::string类定义 typedef basic_string string; template class basic_string { private: ...
string s="This is an example";std::cout<<s<<'\n';s.erase(0,5);// Erase "This "std::cout<<s<<'\n';s.erase(std::find(s.begin(),s.end(),' '));// Erase ' 'std::cout<<s<<'\n';s.erase(s.find(' '));// Trim from ' ' to the end of the stringstd::cout<<...
erase_if(std::basic_string<...>&c, Pred pred); (2)(C++20 起) 1)从容器中擦除所有比较等于value的元素。等价于 autoit=std::remove(c.begin(), c.end(), value);autor=std::distance(it, c.end());c.erase(it, c.end());returnr; ...
<algorithm> #include <cctype> int main() { std::string a = "!!eix!@#$%fghjk^&*()_+%if***" ; std::cout << a << '\n' ; a.erase( std::remove_if( a.begin(), a.end(), []( char c ) { return std::ispunct(c); } ), a.end() ) ; std::cout << a << '\n...
hash<std::basic_string> (C++11) Deduction guides (C++17) Defined in header <string> (1) template< class CharT, class Traits, class Alloc, class U > constexpr std::basic_string<CharT, Traits, Alloc>::size_type erase( std::basic_string<CharT, Traits, Alloc>& c, const U& value...