Strings_append_学习 简单

//append一共有六种重载类型

#include <iostream>
#include <string>
using namespace std;
void append(string& str, int number, char& s)
{
	//cout<<str<<endl;
	//操把这里的类型弄错了，s只能是只能是字符而不能是string串
	str.append(number,s);
	cout<<str<<endl;
	//str.append(number,s);

	string str_one="const string& str \n";
	str.append(str_one);
	cout<<str<<endl;

	char* str_two = "const char* str \n";
	str.append(str_two);
	cout<<str<<endl;

	string str_three = "const string& str, size_type index, size_type len\n";
	str.append(str_three, 6, str_three.length()-6);
	cout<<str<<endl;

	char* str_four=" const char* str, size_type num\n";
	str.append(str_four,10);
	cout<<str<<endl;

	char a = '$';
	str.append(10,a);
	cout<<str<<endl;
};

int main()
{
     string str="Heloo Xlc";
	 char s='@';
	 append(str,9,s);
     system("pause");
	 return 0;
}