Rustlings__variables
练习过程中的随手记,很多问题也未深究,,简单问题可能直接贴改完之后的代码,..分享出来,若能帮助大家,意外乐趣
variables1.rs
// variables1.rs
// Make me compile! Execute the command `rustlings hint variables1` if you want a hint :)
// About this `I AM NOT DONE` thing:
// We sometimes encourage you to keep trying things on a given exercise,
// even after you already figured it out. If you got everything working and
// feel ready for the next exercise, remove the `I AM NOT DONE` comment below.
fn main() {
let x = 5;
println!("x has the value {}", x);
}
variables2.rs
// variables2.rs
// Make me compile! Execute the command `rustlings hint variables2` if you want a hint :)
fn main() {
let x=1;
if x == 10 {
println!("Ten!");
} else {
println!("Not ten!");
}
}
variables3.rs
// variables3.rs
// Make me compile! Execute the command `rustlings hint variables3` if you want a hint :)
fn main() {
let mut x = 3;
println!("Number {}", x);
x = 5;
println!("Number {}", x);
}
variables4.rs
// variables4.rs
// Make me compile! Execute the command `rustlings hint variables4` if you want a hint :)
fn main() {
let x: i32 = 1;
println!("Number {}", x);
}
variables5.rs
// variables5.rs
// Make me compile! Execute the command `rustlings hint variables5` if you want a hint :)
fn main() {
let number = "3";
println!("Number {}", number);
let number = 3;
println!("Number {}", number);
}