..., visit_order: &mut Vec) {
// 1. Mark the current node as visited and record it.
visited.insert(v);
visit_order.push(v);
// 2. Recur for all adjacent vertices (depth-first)
for &neighbor in &self.adj[v] {
if !visited.contains(&neighbor) {
...
... bytes memory b = new bytes(len);
// Here we have a.length == 7 and b.length == len
a[6] = 8;
}
}
```
## 数组常量及内联数组
数组常量，是一个数组表达式（还没有赋值到变量）。下面是一个简单的例子：
```js
pragma solidity ^0.4.16;
con...