C ++ string contains a string method (packaged)

Disclaimer: This article is a blogger original article, shall not be reproduced without the bloggers allowed. https://blog.csdn.net/Giser_D/article/details/90762622

Directly on the code, it is relatively simple.

//判断字符串是否包含某字符串
//@params:str:大的字符串
//@params:contains_str:所包含的字符串
//@return: false:未包含 true：包含
BOOL  IsContainsStr(string str,string contains_str)
{
	string::size_type idx = str.find(contains_str);
	if (idx!=string::npos)
	{
		return TRUE;
	}
	else
	{
		return FALSE;
	}
}