update: translate strings

exercise/exercises/strings/README.md

@@ -1,9 +1,7 @@
-# Strings
+# 字符串
 
-Rust has two string types, a string slice (`&str`) and an owned string (`String`).
-We're not going to dictate when you should use which one, but we'll show you how
-to identify and create them, as well as use them.
+Rust 有两种字符串类型，一种是字符串切片（`&str`），另一种是拥有所有权的字符串（`String`）。我们不打算向你说明何时使用其中哪一种，但我们将为你讲解如何区分和创建它们，并灵活使用。
 
-## Further information
+## 更多信息
 
 - [Strings](https://doc.rust-lang.org/book/ch08-02-strings.html)

exercise/exercises/strings/strings1.rs

@@ -1,14 +1,15 @@
 // strings1.rs
-// Make me compile without changing the function signature!
-// Execute `rustlings hint strings1` for hints ;)
+// 在不改变函数签名的要求下通过编译！
+// 执行 `rustlings hint strings1` 获取提示 ;)
 
 // I AM NOT DONE
 
 fn main() {
     let answer = current_favorite_color();
-    println!("My current favorite color is {}", answer);
+    println!("My current favorite color is {}", answer);// 译："当前我最喜爱的颜色是 {}"
 }
 
+// 译：当前最喜爱的颜色
 fn current_favorite_color() -> String {
     "blue"
 }

exercise/exercises/strings/strings2.rs

@@ -1,18 +1,19 @@
 // strings2.rs
-// Make me compile without changing the function signature!
-// Execute `rustlings hint strings2` for hints :)
+// 在不改变函数签名的要求下通过编译！
+// 执行 `rustlings hint strings2` 获取提示 ;)
 
 // I AM NOT DONE
 
 fn main() {
-    let word = String::from("green"); // Try not changing this line :)
+    let word = String::from("green"); // 尝试不更改这一行 :)
     if is_a_color_word(word) {
-        println!("That is a color word I know!");
+        println!("That is a color word I know!");// 译：我知道这个颜色词
     } else {
-        println!("That is not a color word I know.");
+        println!("That is not a color word I know.");// 译：我不知道这个颜色词
     }
 }
 
+// 译：是否是颜色词
 fn is_a_color_word(attempt: &str) -> bool {
     attempt == "green" || attempt == "blue" || attempt == "red"
 }

exercise/info.toml

@@ -404,21 +404,19 @@ name = "strings1"
 path = "exercises/strings/strings1.rs"
 mode = "compile"
 hint = """
-The `current_favorite_color` function is currently returning a string slice with the `'static`
-lifetime. We know this because the data of the string lives in our code itself -- it doesn't
-come from a file or user input or another program -- so it will live as long as our program
-lives. But it is still a string slice. There's one way to create a `String` by converting a
-string slice covered in the Strings chapter of the book, and another way that uses the `From`
-trait."""
+`current_favorite_color` 函数返回的是一个生命周期为 `'static` 的字符串切片。
+我们知道这点是因为字符串直接存储在了代码中——它并不来自于文件、用户输入或
+其他程序——所以只要程序还在运行，它就会一直存在。但它仍然是一个字符串切片。
+有一种方法可以将字符串切片转换为 `String`，这在书的 Strings 章节有所介绍，还有一种
+方法是使用 `From` 特征"""
 
 [[exercises]]
 name = "strings2"
 path = "exercises/strings/strings2.rs"
 mode = "compile"
 hint = """
-Yes, it would be really easy to fix this by just changing the value bound to `word` to be a
-string slice instead of a `String`, wouldn't it?? There is a way to add one character to line
-9, though, that will coerce the `String` into a string slice."""
+是的，只要把绑定在 `word` 上的值改为字符串切片而非 `String` 就可以很容易地解决这个问题，不是吗？？
+有个方法是在第 9 行添一个字符，这将强制把 `String` 转为字符串切片。"""
 
 # TEST 2