[C++知识库]std::string 实现split

#include "stdafx.h"
#include <string>
#include <vector>
int split(std::string pszSrc, const char* flag, std::vector<std::string>& vecDat)
{
	if (pszSrc.empty() || !flag)
		return -1;
 
	std::string strContent, strTemp;
	strContent = pszSrc;
	std::string::size_type nBeginPos = 0, nEndPos = 0;
	while (true)
	{
		nEndPos = strContent.find(flag, nBeginPos);
		if (nEndPos == std::string::npos)
		{
			strTemp = strContent.substr(nBeginPos, strContent.length());
			if (!strTemp.empty())
			{
				vecDat.push_back(strTemp);
			}
			break;
		}
		strTemp = strContent.substr(nBeginPos, nEndPos - nBeginPos);
		nBeginPos = nEndPos + strlen(flag);
		vecDat.push_back(strTemp);
	}
	return vecDat.size();
}

参考：https://blog.csdn.net/wu110112/article/details/88222137

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