更新

Python-100-Days/Day01-15/Day13/multithread4.py

@@ -0,0 +1,53 @@
+"""
+
+使用多线程的情况 - 耗时间的任务在独立的线程中执行
+
+Version: 0.1
+Author: 骆昊
+Date: 2018-03-20
+
+"""
+
+import time
+import tkinter
+import tkinter.messagebox
+from threading import Thread
+
+
+def main():
+
+    class DownloadTaskHandler(Thread):
+
+        def run(self):
+            # 模拟下载任务需要花费10秒钟时间
+            time.sleep(10)
+            tkinter.messagebox.showinfo('提示', '下载完成!')
+            # 启用下载按钮
+            button1.config(state=tkinter.NORMAL)
+
+    def download():
+        # 禁用下载按钮
+        button1.config(state=tkinter.DISABLED)
+        # 通过daemon参数将线程设置为守护线程(主程序退出就不再保留执行)
+        DownloadTaskHandler(daemon=True).start()
+
+    def show_about():
+        tkinter.messagebox.showinfo('关于', '作者: 骆昊(v1.0)')
+
+    top = tkinter.Tk()
+    top.title('单线程')
+    top.geometry('200x150')
+    top.wm_attributes('-topmost', 1)
+
+    panel = tkinter.Frame(top)
+    button1 = tkinter.Button(panel, text='下载', command=download)
+    button1.pack(side='left')
+    button2 = tkinter.Button(panel, text='关于', command=show_about)
+    button2.pack(side='right')
+    panel.pack(side='bottom')
+
+    tkinter.mainloop()
+
+
+if __name__ == '__main__':
+    main()