swift 批量 取出中间文本

func stringmid_pl (wholestring:String,front:String,behind:String,inout return_string:String,getheroid:Bool)

{

//数组参数inout

// var whole_tmp:String = wholestring

if wholestring.isEmpty

{

// return(return_string) //wholestring 不能为nil

}else  {

var whole:NSString=wholestring

var whole_tmp = whole

let frontindex = whole.rangeOfString(front)

if frontindex.length > 0

{

whole = whole.substringFromIndex(frontindex.location + frontindex.length)

let behindindex = whole.rangeOfString(behind)

if behindindex.length > 0

{

whole = whole.substringToIndex(behindindex.location)

return_string = return_string + (whole as String) + ","

//                  whole_tmp = whole_tmp.stringByReplacingOccurrencesOfString(front, withString: "", options: NSStringCompareOptions.LiteralSearch, range: frontindex)

//

//                  whole_tmp = whole_tmp.stringByReplacingOccurrencesOfString(behind, withString: "", options: NSStringCompareOptions.LiteralSearch, range: whole_tmp.rangeOfString(behind))

whole_tmp = whole_tmp.stringByReplacingOccurrencesOfString(front + (whole as String) + behind, withString: "")

if getheroid == true

{

whole_tmp = whole_tmp.stringByReplacingOccurrencesOfString(front + (whole as String), withString: "")

}

stringmid_pl(whole_tmp as String, front: front, behind: behind, return_string: &return_string,getheroid:getheroid)

// return(whole as String)

} else {

// return(return_string)

} //没有找到behind在wholestring

} else  {

//return(return_string)

}  // 没有找到front 在wholestring

}

}