swift3.0中 删除一个字符号中所有的XX字符

funcremoveAllCommasOfString(str:String) ->Float{

varresultStr:NSString=""

ifstr.contains(",") {

foriin0..< str.characters.count{

letc = (strasNSString).character(at: i)

letchara =Character(UnicodeScalar(c)!)

ifchara==","{

resultStr = str.replacingOccurrences(of:",", with:"")asNSString

}

}

}else{

resultStr = strasNSString

}

returnresultStr.floatValue

}