answer of test2.rs?

[chyyuu]

下面这个题目的正确答案是？

// test2.rs
// This is a test for the following sections:
// - Strings

// Ok, here are a bunch of values-- some are Strings, some are &strs. Your
// task is to call one of these two functions on each value depending on what
// you think each value is. That is, add either string_slice or string
// before the parentheses on each line. If you're right, it will compile!

// I AM NOT DONE

fn string_slice(arg: &str) {
println!("{}", arg);
}
fn string(arg: String) {
println!("{}", arg);
}

fn main() {
("blue");
("red".to_string());
(String::from("hi"));
("rust is fun!".to_owned());
("nice weather".into());
(format!("Interpolation {}", "Station"));
(&String::from("abc")[0..1]);
(" hello there ".trim());
("Happy Monday!".to_string().replace("Mon", "Tues"));
("mY sHiFt KeY iS sTiCkY".to_lowercase());
}

[xushanpu123]

老师您好，补全的代码如下： // test2.rs // This is a test for the following sections: // - Strings // Ok, here are a bunch of values-- some are `Strings`, some are `&strs`. Your // task is to call one of these two functions on each value depending on what // you think each value is. That is, add either `string_slice` or `string` // before the parentheses on each line. If you're right, it will compile! fn string_slice(arg: &str) {     println!("{}", arg); } fn string(arg: String) {     println!("{}", arg); } fn main() {     string_slice("blue");     string("red".to_string());     string(String::from("hi"));     string("rust is fun!".to_owned());     string("nice weather".into());     string(format!("Interpolation {}", "Station"));     string_slice(&String::from("abc")[0..1]);     string_slice("  hello there ".trim());     string("Happy Monday!".to_string().replace("Mon", "Tues"));     string("mY sHiFt KeY iS sTiCkY".to_lowercase()); }

…

---Original--- From: "chyyuu"<notifications@github.com&gt; Date: Sat, May 23, 2020 19:26 PM To: "xushanpu123/my-rust"<my-rust@noreply.github.com&gt;; Cc: "Subscribed"<subscribed@noreply.github.com&gt;; Subject: [xushanpu123/my-rust] answer of test2.rs? (#1) 下面这个题目的正确答案是？ // test2.rs // This is a test for the following sections: // - Strings // Ok, here are a bunch of values-- some are Strings, some are &amp;strs. Your // task is to call one of these two functions on each value depending on what // you think each value is. That is, add either string_slice or string // before the parentheses on each line. If you're right, it will compile! // I AM NOT DONE fn string_slice(arg: &amp;str) { println!("{}", arg); } fn string(arg: String) { println!("{}", arg); } fn main() { ("blue"); ("red".to_string()); (String::from("hi")); ("rust is fun!".to_owned()); ("nice weather".into()); (format!("Interpolation {}", "Station")); (&amp;String::from("abc")[0..1]); (" hello there ".trim()); ("Happy Monday!".to_string().replace("Mon", "Tues")); ("mY sHiFt KeY iS sTiCkY".to_lowercase()); } — You are receiving this because you are subscribed to this thread. Reply to this email directly, view it on GitHub, or unsubscribe.