原文https://stackoverflow.com/questions/15974787/difference-between-import-tkinter-as-tk-and-from-tkinter-import from Tkinter import * imports every exposed object in Tkinter into your current namespace. import Tkinter imports the "namespace" Tkin
Dart & import show & import hide & import as & part & part of // 部分导入,即仅仅导入 dart:ui 库里面的 Color 模块 import 'dart:ui' show Color; https://stackoverflow.com/questions/19723063/what-is-the-difference-between-show-and-as-in-an-import-stateme