标签:me functions rs i32 price Rustlings num fn
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
functions1.rs
// functions1.rs
// Make me compile! Execute `rustlings hint functions1` for hints :)
fn call_me(){
}
fn main() {
call_me();
}
functions2.rs
// functions2.rs
// Make me compile! Execute `rustlings hint functions2` for hints :)
fn main() {
call_me(3);
}
fn call_me(num:i32) {
for i in 0..num {
println!("Ring! Call number {}", i + 1);
}
}
functions3.rs
// functions3.rs
// Make me compile! Execute `rustlings hint functions3` for hints :)
fn main() {
call_me(1);
}
fn call_me(num: i32) {
for i in 0..num {
println!("Ring! Call number {}", i + 1);
}
}
functions4.rs
// functions4.rs
// Make me compile! Execute `rustlings hint functions4` for hints :)
// This store is having a sale where if the price is an even number, you get
// 10 Rustbucks off, but if it's an odd number, it's 3 Rustbucks off.
fn main() {
let original_price = 51;
println!("Your sale price is {}", sale_price(original_price));
}
fn sale_price(price: i32) -> i32 {
if is_even(price) {
price - 10
} else {
price - 3
}
}
fn is_even(num: i32) -> bool {
num % 2 == 0
}
functions5.rs
// functions5.rs
// Make me compile! Execute `rustlings hint functions5` for hints :)
fn main() {
let answer = square(3);
println!("The answer is {}", answer);
}
fn square(num: i32) -> i32 {
num * num
}
标签:me,functions,rs,i32,price,Rustlings,num,fn 来源: https://www.cnblogs.com/nightwindnw/p/Rustlings_3.html
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