Swift如何在标签

Question

第一张和第二张图片我可以成功读取和写入我的thisdata.txt文件，但我只能打印消息

我想让标签显示来自thisdata.text的文本

我该怎么做？

https://i.stack.imgur.com/E94df.png

https://i.stack.imgur.com/nntOL.png

https://i.stack.imgur.com/gOIiz.png

https://i.stack.imgur.com/Dznld.png

Answer 1

您需要将string分配给data标签。就像：

data.text = readString // If you need to print 'readString'
data.text = readStringProject // If you need to print 'readStringProject'

    var readString = ""
    do {
        readString = try String(contentsOfFile: fileURL)
        data.text = readString
    } catch let error as NSError {
        print("failed to read file")
        print(error)
    }