字符串分割函数

#include <iostream>
#include <vector>
#include <string>

using namespace std;

vector<string> split(const string& str, const string& pattern)
{
    vector<string> res;
    if ("" == str)
        return res;

    string strs = str + pattern;

    size_t pos = strs.find(pattern);
    size_t size = strs.size();

    while (pos != string::npos)
    {
        string x = strs.substr(0, pos);
        res.push_back(x);
        strs = strs.substr(pos + 1, size);
        pos = strs.find(pattern);
    }
    return res;
}

int main()
{
    string str = "abc/def/ghi";
    vector<string> res = split(str, "/");
    for (auto r : res)
    {
        cout << r << endl;

    }
    return 0;
}

/*输出结果：
abc
def
ghi
*/