通過例子學習Rust之 1 Hello World
阿新 • • 發佈:2019-01-29
1 Hello World
世界,你好。
This is the source code of the traditional Hello World program.
這是傳統的Hello World的原始碼。
// This is a comment, and will be ignored by the compiler
// 本行為註釋,會被編譯器忽略
// You can test this code by clicking the "Run" button over there ->
// 點選Run按鈕即可執行此程式碼
// or if prefer to use your keyboard, you can use the "Ctrl + Enter" shortcut
// 或者希望使用鍵盤,可以用"Ctrl + Enter"快捷鍵
// This code is editable, feel free to hack it!
// 點選此程式碼即可編輯
// You can always return to the original code by clicking the "Reset" button ->
// 隨時點選"Reset"按鈕回到初始程式碼
// This is the main function
// 這是主函式
fn main() {
// The statements here will be executed when the compiled binary is called
// Print text to the console
println!("Hello World!");
}
println! is a macro that prints text to the console.
println! 是一個向控制檯列印文字的巨集
A binary can be generated using the Rust compiler: rustc.
使用Rust編譯器命令rustc即可生成二進位制檔案
$ rustc hello.rs
rustc will produce a hello binary that can be executed.
rustc 將產生一個可執行的二進位制檔案hello
$ ./hello
Hello World!