//使用擦除成员函数来截断字符串
#include <string>
#include <algorithm>
#include <iostream>
int main() {
using namespace std;
string strSample("Hello String! Wake up to a beautiful day!");
cout << "The original sample string is: " << endl;
cout << strSample << endl << endl;
// Delete characters from the string given position and count
cout << "Truncating the second sentence: " << endl;
strSample.erase(13, 28);
cout << strSample << endl << endl;
// Find a character 'S' in the string using STL find algorithm
string::iterator iCharS = find(strSample.begin(), strSample.end(), 'S');
// If character found, 'erase' to deletes a character
cout << "Erasing character 'S' from the sample string:" << endl;
if (iCharS != strSample.end())
strSample.erase(iCharS);
cout << strSample << endl << endl;
// Erase a range of characters using an overloaded version of erase()
cout << "Erasing a range between begin() and end(): " << endl;
strSample.erase(strSample.begin(), strSample.end());
// Verify the length after the erase() operation above
if (strSample.length() == 0)
cout << "The string is empty" << endl;
return 0;
}