C++中利用STD库函数分割字符串

 最近需要对一些文本数据进行处理，所以觉得还是C#和Java提供的关于字符串操作的函数功能更强大些。这两种语言中都有将一个字符串按照给定分隔符分割的函数split，C++中却没有这个函数。所以决定自己写一个，以后也会经常用到，今天发到网上，一者供有需要的朋友使用；二者让大家帮我看看 程序是不是有隐含错误或者有哪些更好的改进。

 #include <string>#include <vector>#include <iostream>using namespace std;//Split a string by delimiters// inputstr: the string to be split.// delimiters: contains some delimiters used to split the string.// substrs: the output strings, each of which represents a substring.// return result: the number of substrssint split_string(const wstring &inputstr, const vector<wstring>& delimiters, vector<wstring> &substrs){if (inputstr.length() == 0 || delimiters.size() == 0) {return 0;}int find_pos = 0; //the finding positionwhile (true) { int split_pos = wstring::npos; // 最近的分隔符位置 int delimiter_size = 0; // 所用到的分隔符长度vector<wstring>::const_iterator itrbeg = delimiters.begin();while (itrbeg != delimiters.end()) {int tpos = inputstr.find(*itrbeg, find_pos);if ((split_pos != wstring::npos && tpos != wstring::npos && tpos < split_pos)|| (split_pos == wstring::npos && tpos != wstring::npos)) {split_pos = tpos;delimiter_size = itrbeg->size();}++itrbeg;}if (split_pos != wstring::npos) {substrs.push_back(inputstr.substr(find_pos, split_pos - find_pos));find_pos = split_pos + delimiter_size;}else {substrs.push_back(inputstr.substr(find_pos)); // all the remainder is pushed backbreak;}};return substrs.size(); }int _tmain(int argc, _TCHAR* argv[]){wstring input = L"00,0,7223,37.215564793231806,8.805709154222296,8.003528413084876";vector<wstring> szDelimiters;szDelimiters.push_back(L",");szDelimiters.push_back(L"/t");vector<wstring> outputs;split_string(input, szDelimiters, outputs);input = L"a,b.cd34 2?@,,,";szDelimiters.push_back(L".");szDelimiters.push_back(L" ");//spaceszDelimiters.push_back(L"?");outputs.clear();split_string(input, szDelimiters, outputs);return 0;}