IDE是VS2013.

#include<iostream>
#include <vector>
#include<string>
using namespace std;
vector<string> split(const string& src, string separate_character)
{
	vector<string> strs;
	int separate_characterLen = separate_character.size();//分割字串的長度,這樣就可以支援如“,,”多字串的分隔符
	int lastPosition = 0, index = -1;
	while (-1 != (index = src.find(separate_character, lastPosition)))
	{
		strs.push_back(src.substr(lastPosition, index - lastPosition));
		lastPosition = index + separate_characterLen;
	}
	string lastString = src.substr(lastPosition);//擷取最後一個分隔符後的內容
	if (!lastString.empty())
		strs.push_back(lastString);//如果最後一個分隔符後還有內容就入隊
	return strs;
}
int _tmain(int argc, _TCHAR* argv[])
{
	string s = "12.45.78";
	string del =".";
	vector<string> strs = split(s,del);
	for (int i = 0; i < strs.size(); i++)
	{
		cout << strs[i]<<' ';
	}
	cout << endl;
	system("pause");
	return 0;
}