# coding=GBK
"""计算器软件界面的设计"""
from tkinter import *
class AppLication(Frame):
'''创建一个App'''
def __init__(self,master=None):
super().__init__(master)
self.master = master
self.pack()
self.createWidget()
def createWidget(self):
"""通过gird实现计算器界面的展示"""
btnText = (("MC","M+","M-","MR"),
("C","±","/","×"),
(7,8,9,"-"),
(4,5,6,"+"),
(1,2,3,"="),
(0,"."))
Entry(self).grid(row=0,column=0,columnspan=4,pady=10)
for rindex,r in enumerate(btnText):
for cindex,c in enumerate(r):
if c == "0":
Button(self, text=c, width=2).grid(row=rindex + 1, column=cindex, columnspan=2,sticky=NSEW)
elif c == "=":
Button(self, text=c, width=2).grid(row=rindex + 1, column=cindex, rowspan=2,sticky=NSEW)
elif c == ".":
Button(self, text=c, width=2).grid(row=rindex + 1, column=cindex+1,sticky=NSEW)
else:
Button(self,text=c,width=2).grid(row=rindex+1,column=cindex,sticky=NSEW)
if __name__=='__main__':
root = Tk()
root.geometry("200x260+800+600")
app = AppLication(master=root)
root.mainloop()

老师,我这个0的跨列跨不过去,您帮我看看是怎么回事?