🕓 *Release Date / 发布日期 : 2023-07-01*
🟢 **Added / 新增**
* The classes `_Point`, `_Line`, `_Side`, and `Geometry` of the 3D submodule all have a new method `center` that returns the geometric center of the 3D object
3D 子模块的类 `_Point`、`_Line`、`_Side` 和 `Geometry` 都新增一个方法 `center` 返回该 3D 对象的几何中心
* Added abstract class `_3D_Object` as the metabase class for classes `_Point`, `_Line`, and `_Side`
新增抽象类 `_3D_Object` 来作为类 `_Point`、`_Line` 和 `_Side` 的元基类
🔵 **Optimized / 优化**
* Optimized parameter passing in 3D submodules, users do not need to ensure the transitivity of `list` at all times, and parameters that used to only use the `list` type are now `Iterable` type
优化了 3D 子模块中的参数传递，使用者不需要时刻保证 `list` 的传递性，且原来只能使用 `list` 类型的参数现在为 `Iterable` 类型
* The way 3D objects are centered in the 3D submodule has changed, which has improved performance and reduced the amount of code
3D 子模块中 3D 对象居中方式改变，相比原来性能提升了不少，代码量也减少了
* Corrected some incorrect type hints and improved some missing method comments
改正了部分错误的类型提示，完善了部分缺少的方法注释
* In the 3D submodule, the distance between two points was originally calculated with the function `hypot`, and now the function `dist` is used directly to calculate the Euclidean distance between two points to improve performance
3D 子模块中原来用函数 `hypot` 计算两点间距离，现在直接用函数 `dist` 计算两点间欧几里得距离，提高性能
* The position display of widgets of class `Point` has been optimized in the 3D submodule so that it is always at the forefront
3D 子模块中优化了类 `Point` 的控件位置显示，让其始终保持在最前
* The calculation formula for the camera distance in the 3D submodule has been optimized to improve the performance by a bit
3D 子模块中相机距离的计算公式优化，提高了一点性能
🟡 **Changed / 变更**
* The parameters `point1` and `point2` of class `Point` of the 3D submodule and its parent class `_Point` were renamed to `point_start` and `point_end` respectively
3D 子模块的类 `Point` 及其父类 `_Point` 的参数 `point1` 和 `point2` 分别被重命名为 `point_start` 和 `point_end`
* The parameter `origin_color` of the class `Space` of the 3D submodule has been changed to four new parameters, namely `origin_size`, `origin_width`, `origin_fill` and `origin_outline`
3D 子模块的类 `Space` 的参数 `origin_color` 被更改为四个新的参数，分别是 `origin_size`、`origin_width`、`origin_fill` 和 `origin_outline`
🔴 **Removed / 移除**
* The classes `Canvas_3D` and `Space` of the 3D submodule remove the parameters `dx` and `dy`, and the default field of view of the canvas remains centered, i.e. their center is now the original upper-left vertex
3D 子模块的类 `Canvas_3D` 和 `Space` 移除参数 `dx` 和 `dy`，画布默认视野保持居中，也就是说，现在它们的中心位置才是原来的左上角顶点