Swift：调用中缺少参数“ locale”的参数

Question

How to exactly define str as string in for loop ?

for str in aryFilters{

     var str1 : NSString=NSString(string: str)
     var filters : CIFilter=CIFilter(name: str1)  

}

Answer 1

for str in arrayFilters as [String] {
    var str1 : NSString = NSString(string: str)
    var filters : CIFilter = CIFilter(name: str1)  
}