删除点 (同时要删除边)
(&mut self, key: &T)
| 112 | |
| 113 | // 删除点 (同时要删除边) |
| 114 | fn remove_vertex(&mut self, key: &T) -> Option<Vertex<T>> { |
| 115 | let old_vertex = self.vertices.remove(key); |
| 116 | self.vertnums -= 1; |
| 117 | |
| 118 | // 删除从当前点出发的边 |
| 119 | self.edgenums -= old_vertex.clone() |
| 120 | .unwrap() |
| 121 | .get_connects() |
| 122 | .len() as u32; |
| 123 | |
| 124 | // 删除到当前点的边 |
| 125 | for vertex in self.vertex_keys() { |
| 126 | if let Some(vt) = self.vertices.get_mut(&vertex) { |
| 127 | if vt.adjacent_key(key) { |
| 128 | vt.connects.retain(|(k, _)| k != key); |
| 129 | self.edgenums -= 1; |
| 130 | } |
| 131 | } |
| 132 | } |
| 133 | |
| 134 | old_vertex |
| 135 | } |
| 136 | |
| 137 | fn add_edge(&mut self, from: &T, to: &T, wt: i32) { |
| 138 | // 若点不存在要先添加点 |
no test coverage detected