around singular versus plural arguments), Tornado does not attempt to unify form arguments with other types of input. In particular, we do not parse JSON request bodies. Applications that wish to use JSON instead Application configuration. initialize should typically just save the arguments passed into member variables; it may not produce any output or call methods like send_error. 3. prepare() is called. This is returned otherwise. The most common pattern for translations is to use Python named placeholders for variables (the %(num)d in the example above) since placeholders can move around on translation. Here is a

around singular versus plural arguments), Tornado does not attempt to unify form arguments with other types of input. In particular, we do not parse JSON request bodies. Applications that wish to use JSON instead Application configuration. initialize should typically just save the arguments passed into member variables; it may not produce any output or call methods like send_error. 3. prepare() is called. This is returned otherwise. The most common pattern for translations is to use Python named placeholders for variables (the %(num)d in the example above) since placeholders can move around on translation. Here is a

v0.8.5 Compiling guessing_game v0.1.0 (file:///projects/guessing_game) error[E0308]: mismatched types --> src/main.rs:23:21 | 23 | match guess.cmp(&secret_number) { | --- ^^^^^^^^^^^^^^ compile `guessing_game` (bin "guessing_game") due to 1 previous error 错误的核心表明这里有 不匹配的类型（mismatched types）。Rust 有一个静态强类型系统，同 时也有类型推断。当我们写出 let guess = String::new() 时，Rust 推断出 guess 应该是 String 类型，并不需要我们 性，以及何时你会选择禁用它。 当变量不可变时，一旦值被绑定一个名称上，你就不能改变这个值。为了对此进行说明，使用 cargo new variables 命令在 projects 目录生成一个叫做 variables 的新项目。 接着，在新建的 variables 目录，打开 src/main.rs 并将代码替换为如下代码，这些代码还不能 编译，我们会首次检查到不可变错误（immutability