相关疑难解决方法(0)

我在初始化固定长度数组时遇到问题. 到目前为止,我的尝试都导致了"使用可能未初始化的变量:foo_array"错误:

#[derive(Debug)]
struct Foo { a: u32, b: u32 }

impl Default for Foo {
    fn default() -> Foo { Foo{a:1, b:2} }
}

pub fn main() {
    let mut foo_array: [Foo; 10];

    // Do something here to in-place initialize foo_array?

    for f in foo_array.iter() {
        println!("{:?}", f);
    }
}

error[E0381]: use of possibly uninitialized variable: `foo_array`
  --> src/main.rs:13:14
   |
13 |     for f in foo_array.iter() {
   |              ^^^^^^^^^ use of possibly uninitialized `foo_array`

我实现了Default …