error[E0432]: unresolved import `lazy_static`
 --> /w/foo.rs:7:5
  |
7 | use lazy_static::lazy_static;
  |     ^^^^^^^^^^^ maybe a missing crate `lazy_static`?
  |
  = help: consider adding `extern crate lazy_static` to use the `lazy_static` crate

error[E0432]: unresolved import `regex`
 --> /w/foo.rs:9:5
  |
9 | use regex::{Captures, Regex};//regex = "1.6.0"
  |     ^^^^^ maybe a missing crate `regex`?
  |
  = help: consider adding `extern crate regex` to use the `regex` crate

error: cannot determine resolution for the macro `lazy_static`
   --> /w/foo.rs:224:1
    |
224 | lazy_static! {//让DP数组作为全局可变静态变量，需要使用lazy_static和Mutex配合实现初始化
    | ^^^^^^^^^^^
    |
    = note: import resolution is stuck, try simplifying macro imports

error[E0425]: cannot find value `DP` in this scope
   --> /w/foo.rs:228:21
    |
228 |     let dp = &mut *(DP.lock()?);//dp为&mut Vec<Vec<u128>>
    |                     ^^ not found in this scope

warning: unused import: `std::sync::Mutex`
 --> /w/foo.rs:6:5
  |
6 | use std::sync::Mutex;
  |     ^^^^^^^^^^^^^^^^
  |
  = note: `#[warn(unused_imports)]` on by default

error: aborting due to 4 previous errors; 1 warning emitted

Some errors have detailed explanations: E0425, E0432.
For more information about an error, try `rustc --explain E0425`.

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