(&self, mut size: usize)
| 72 | } |
| 73 | |
| 74 | fn calc_size(&self, mut size: usize) -> usize { |
| 75 | size += 1; |
| 76 | |
| 77 | if !self.left.is_none() { |
| 78 | size = self.left.as_ref().unwrap().calc_size(size); |
| 79 | } |
| 80 | if !self.right.is_none() { |
| 81 | size = self.right.as_ref().unwrap().calc_size(size); |
| 82 | } |
| 83 | |
| 84 | size |
| 85 | } |
| 86 | |
| 87 | // 计算叶节点数 |
| 88 | fn leaf_size(&self) -> usize { |