使用python 的 Tkinter实现一个简易计算器
- #coding:utf-8
- from Tkinter import *
- import time
- root = Tk()
- def cacl(input_str):
- if "x" in input_str:
- ret = input_str.split("x")
- return int(ret[0]) * int(ret[1])
- def callback(n):
- print n
- def callback1(n):
- print n
- class App:
- def __init__(self, master):
- frame1 = Frame(master)
- frame1.pack()
- frame = Frame(master)
- frame.pack()
- Button(frame, text="1",command=lambda: callback(1) ).grid(row=0,column=0)
- Button(frame, text="2",command=lambda: callback(2) ).grid(row=0,column=1)
- Button(frame, text="3",command=lambda: callback(3) ).grid(row=0,column=2)
- Button(frame, text="4",command=lambda: callback(4) ).grid(row=1,column=0)
- Button(frame, text="5",command=lambda: callback(5) ).grid(row=1,column=1)
- Button(frame, text="6",command=lambda: callback(6) ).grid(row=1,column=2)
- Button(frame, text="7",command=lambda: callback(7) ).grid(row=2,column=0)
- Button(frame, text="8",command=lambda: callback(8) ).grid(row=2,column=1)
- Button(frame, text="9",command=lambda: callback(9) ).grid(row=2,column=2)
- Button(frame, text="0",command=lambda: callback(0) ).grid(row=3,column=0)
- Button(frame, text="+",command=lambda: callback1("+") ).grid(row=3,column=1)
- Button(frame, text="-",command=lambda: callback1("-") ).grid(row=3,column=2)
- Button(frame, text="*",command=lambda: callback1("*") ).grid(row=4,column=1)
- Button(frame, text="/",command=lambda: callback1("/") ).grid(row=4,column=2)
- Button(frame, text="=", command=self.say_hi).grid(row=4,column=0)
- w = Label(frame1,text="输入结果")
- w.pack()
- self.e = Entry(frame1)
- self.e.pack(padx=5)
- w1 = Label(frame1,text="计算结果")
- w1.pack()
- v = StringVar()
- e1 = Entry(frame1, textvariable=v)
- v.set("")
- self.v = v
- e1.pack()
- def say_hi(self):
- print "hi there, everyone!",self.e.get()
- input_str = self.e.get()
- self.v.set(cacl(input_str))
- app = App(root)
- root.mainloop()
来源: http://www.phpxs.com/code/1004809/