create tk7

Author: Mofan Zhou

tkinterTUT/tk7_checkbutton.py

@@ -0,0 +1,36 @@
+# View more python learning tutorial on my Youtube and Youku channel!!!
+
+# Youtube video tutorial: https://www.youtube.com/channel/UCdyjiB5H8Pu7aDTNVXTTpcg
+# Youku video tutorial: http://i.youku.com/pythontutorial
+
+import tkinter as tk
+
+window = tk.Tk()
+window.title('my window')
+window.geometry('200x200')
+
+l = tk.Label(window, bg='yellow', width=20, text='empty')
+l.pack()
+
+def print_selection():
+    if (var1.get() == 1) & (var2.get() == 0):
+        l.config(text='I love only Python ')
+    elif (var1.get() == 0) & (var2.get() == 1):
+        l.config(text='I love only C++')
+    elif (var1.get() == 0) & (var2.get() == 0):
+        l.config(text='I do not love either')
+    else:
+        l.config(text='I love both')
+
+var1 = tk.IntVar()
+var2 = tk.IntVar()
+c1 = tk.Checkbutton(window, text='Python', variable=var1, onvalue=1, offvalue=0,
+                    command=print_selection)
+c2 = tk.Checkbutton(window, text='C++', variable=var2, onvalue=1, offvalue=0,
+                    command=print_selection)
+c1.pack()
+c2.pack()
+
+
+window.mainloop()
+