xcode iOS：从 Swift 3 迁移（升级）到 Swift 4
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iOS: Migration (Upgrade) from Swift 3 to Swift 4
提问by Krunal
Recent major update in iOS application development tool Xcode 9supports Swift 3.2 & 4programming language.
iOS 应用程序开发工具的最新重大更新Xcode 9支持Swift 3.2 & 4编程语言。
I've my app developed with Swift 3 version and I want to convert/migrate, complete source code from Swift 3 to Swift 4. During migration, it's showing me 354 errors.
我的应用程序是用 Swift 3 版本开发的，我想从Swift 3 to Swift 4. 在迁移过程中，它显示给我354 errors。
These errors are fixable. The solution of error is suggested by Xcode itself. But there are 354 errors. How can I fix them all at once? Manual fixing of each error one-by-one will be a time-consuming activity.
这些错误是可以修复的。错误的解决方法是Xcode本身建议的。但是有354个错误。我怎样才能一次修复它们？逐个手动修复每个错误将是一项耗时的活动。
Is there any feasible solution to fix all errors at once.
是否有任何可行的解决方案可以一次性修复所有错误。
Here is a snapshot with the sample.
这是示例的快照。
回答by Moin Shirazi
We have a better option to fix this error at once. It can be solved out from Editormenu
我们有一个更好的选择来立即修复此错误。可以从Editor菜单中解决
Use this option to fix all the error at once in class.
使用此选项可在课堂上一次性修复所有错误。
Note:You cannot always rely on Xcode suggestions, but for migration case it will work in most of the case.
注意：您不能总是依赖 Xcode 建议，但对于迁移案例，它在大多数情况下都有效。
