摘要： from Tkinter import *def foo(): input = var.get() try: c = eval(input) except: c = "error!" t.config(text = "结果是: " + str(c))root = Tk()root.title("小小计算器")#btnbutton = Button(root, text="计算结果", command = foo)button.grid(column=2, row=1, sticky=E)#inputvar = St 阅读全文