swift - 从 swift 1.0 到 1.2 的固定功能

Question

我刚升级到新的 swift，不知道如何修复这个功能。有任何想法吗？我收到以下错误以及我的第一行和返回行:

'(@Ivalue String!) -> _' is not identical to 'NSInteger'

func textView(textView: UITextView, shouldChangeTextInRange range: NSRange, replacementText text: String) -> Bool {
        var countx = count(textView.text) + (count(text) - count(range))
        var t = String(countx) + "/500"
        countText.text = t
        return count(textView.text) + (count(text) - count(range)) <= 500
    }

Answer 1

试试这段代码->

func textView(textView: UITextView, shouldChangeTextInRange range: NSRange, replacementText text: String) -> Bool {
        let countx = count(textView.text) + (count(text) - range.length)
        countText.text = "\(countx)/500"
        return countx <= 500
    }