我阅读了这个教程并尝试了下面这段Rust代码:。
但是编译器抱怨:
fn main() {
let x = ~10;
println!("{:d}", *x);
}
但是编译器抱怨:
rustc 1.16.0 (30cf806ef 2017-03-10)
error: expected expression, found `~`
--> <anon>:2:13
|
2 | let x = ~10;
| ^
error: unknown format trait `d`
--> <anon>:3:22
|
3 | println!("{:d}", *x);
| ^^
let x = ~10;
已经过时了吗?