集合类型 Swift 语言提供数组（Array）、集合（Set）和字典（Dictionary）三种基本的集合类型用来存储集合数据。数组是有序数据的集。集合是无序无重复数据的集...
IP属地：天津
集合类型 Swift 语言提供数组（Array）、集合（Set）和字典（Dictionary）三种基本的集合类型用来存储集合数据。数组是有序数据的集。集合是无序无重复数据的集...
字符串和字符 字符串是是一系列字符的集合，例如 "hello, world"，"albatross"。Swift 的字符串通过 String 类型来表示。而 String 内...
基本运算符 运算符是检查、改变、合并值的特殊符号或短语。例如，加号（+）将两个数相加（如 let i = 1 + 2）。更复杂的运算例子包括逻辑与运算符 &&（如 if en...
Swift 是一门开发 iOS, macOS, watchOS 和 tvOS 应用的新语言。然而，如果你有 C 或者 Objective-C 开发经验的话，你会发现 Swif...
For information about:有关以下信息： the operating systems, compilers, build systems, and C++ ...
Prefer not to put .proto files in the same directory as other language sources. Conside...
To generate the Java, Kotlin, Python, C++, Go, Ruby, Objective-C, or C# code you need t...
Objective-C Generated Code [Compiler invocation - 编译器调用] [Packages - 包] [Class prefix -...
Individual declarations in a .proto file can be annotated with a number of options. Opt...
Proto3 supports a canonical encoding in JSON, making it easier to share data between sy...
If you want to use your message types with an RPC (Remote Procedure Call) system, you c...
You can add an optional package specifier to a .proto file to prevent name clashes betw...
If you want to create an associative map as part of your data definition, protocol buff...
If you have a message with many fields and where at most one field will be set at the s...
The Any message type lets you use messages as embedded types without having their .prot...
Unknown fields are well-formed protocol buffer serialized data representing fields that...
If an existing message type no longer meets all your needs – for example, you'd like th...
You can define and use message types inside other message types, as in the following ex...
