Swift 用户交互翻译，本地化代码中的字符串
在info.plist设置要显示的语言
1.通用字符串的标准翻译（ok，删除，取消）等
NSLocalizedString("Delete", tableName: "", bundle: Bundle(for: UIButton.classForCoder()), value: "", comment: "delete for ...")
2.普通字符串翻译
NSLocalizedString("Delete", comment: "")
在info.plist设置要显示的语言
1.通用字符串的标准翻译（ok，删除，取消）等
NSLocalizedString("Delete", tableName: "", bundle: Bundle(for: UIButton.classForCoder()), value: "", comment: "delete for ...")
2.普通字符串翻译
NSLocalizedString("Delete", comment: "")
