C++中模拟split

#include<iostream>
#include<sstream>
using namespace std;
int main(){
	string str;
	getline(cin,str);
	istringstream in(str);
	string a;
	while(getline(in,a,'*')){
		cout<<a<<' ';
	}
	return 0;
}

123*456*789
123 456 789
--------------------------------
Process exited after 4.52 seconds with return value 0
请按任意键继续. . .