c++ string.erase

The `string.erase()` function is a member function of the C++ standard library's `string` class. It is used to remove a portion of the string, starting at a specified position and for a specified length.

Syntax:

string.erase(position, length);

Here, `position` is an integer value that specifies the starting position from where the characters are to be removed. `length` is also an integer value that specifies the number of characters to be removed.

Example:

#include <iostream> 
#include <string> 

int main() 
{ 
    std::string str = "Hello, World!"; 
    
    // remove the first 6 characters
    str.erase(0, 6); 
    
    std::cout << str << std::endl; // output: World!
    
    return 0; 
}

In the above example, the `erase()` function is used to remove the first 6 characters from the string `str`. The resulting string is then output to the console.