计算器页面设计及功能实现

最新推荐文章于 2025-08-13 21:05:35 发布

原创最新推荐文章于 2025-08-13 21:05:35 发布 · 600 阅读

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from tkinter import *
root=Tk()
root.title("calculator")
result=StringVar()
result.set("")
#显示区
label=Label(root,width=25,height=2,relief="raised",anchor=SE,textvariable=result)  #变量传递
label.grid(row=0, column=0,columnspan=4,padx=5,pady=5)
#按钮及布局设计
Button(root,text="C",fg="blue",width=5,command=lambda:result.set("")).grid(row=1,column=0)
Button(root,text="DEL",width=5).grid(row=1,column=1)
Button(root,text="BCK",width=5,command=lambda:result.set(result.get()[:-1])).grid(row=1,column=2)
Button(root,text="/",width=5,command=lambda:result.set(result.get()+"/")).grid(row=1,column=3)
Button(root,text="7",width=5,command=lambda:result.set(result.get()+"7")).grid(row=2,column=0)
Button(root,text="8",width=5,command=lambda:result.set(result.get()+"8")).grid(row=2,column=1)
Button(root,text="9",width=5,command=lambda:result.set(result.get()+"9")).grid(row=2,column=2)
Button(root,text="*",width=5,command=lambda:result.set(result.get()+"*")).grid(row=2,column=3)
Button(root,text="4",width=5,command=lambda:result.set(result.get()+"4")).grid(row=3,column=0)
Button(root,text="5",width=5,command=lambda:result.set(result.get()+"5")).grid(row=3,column=1)
Button(root,text="6",width=5,command=lambda:result.set(result.get()+"6")).grid(row=3,column=2)
Button(root,text="-",width=5,command=lambda:result.set(result.get()+"-")).grid(row=3,column=3)
Button(root,text="1",width=5,command=lambda:result.set(result.get()+"1")).grid(row=4,column=0)
Button(root,text="2",width=5,command=lambda:result.set(result.get()+"2")).grid(row=4,column=1)
Button(root,text="3",width=5,command=lambda:result.set(result.get()+"3")).grid(row=4,column=2)
Button(root,text="+",width=5,command=lambda:result.set(result.get()+"+")).grid(row=4,column=3)
Button(root,text="0",width=5,command=lambda:result.set(result.get()+"0")).grid(row=5,column=0)
Button(root,text=".",width=5,command=lambda:result.set(result.get()+".")).grid(row=5,column=1)
Button(root,text="=",width=12,command=lambda:result.set(result.get()+"="+str(eval(result.get())))).grid(row=5,column=2,columnspan=2)
root.mainloop()