我的代码应该是一个带有按钮的简单计算器,用于显示答案。我仅添加了一条注释,该注释告诉您操作的代码在哪里。我有6种不同的运算,加,减,除,乘,求平方和平方根。
到目前为止,这是我的代码:
while True:
import math
import tkinter.messagebox
# Simple Operations
num1 = float(input("Please enter a number: "))
op = input("Please enter an operation (+, -, /, *, 0, 1): ")
if op == "0":
def onClick():
tkinter.messagebox.showinfo("Square Root", math.sqrt(num1))
root = tkinter.Tk()
button = tkinter.Button(root, text="Show Answer", command=onClick)
button.pack()
root.mainloop()
elif op == "1":
def onClick():
tkinter.messagebox.showinfo("Square", num1*num1)
root = tkinter.Tk()
button = tkinter.Button(root, text="Show Answer", command=onClick)
button.pack()
root.mainloop()
num2 = float(input("Please enter another number: "))enter code here
elif:
if op == "+":
def onClick():
tkinter.messagebox.showinfo("Addition", num1 + num2)
root = tkinter.Tk()
button = tkinter.Button(root, text="Show Answer", command=onClick)
button.pack()
root.mainloop()
elif:
if op == "-":
def onClick():
tkinter.messagebox.showinfo("Subtraction", num1 - num2)
root = tkinter.Tk()
button = tkinter.Button(root, text="Show Answer", command=onClick)
button.pack()
root.mainloop()
if op == "*":
def onClick():
tkinter.messagebox.showinfo("Multiplication", num1 * num2)
root = tkinter.Tk()
button = tkinter.Button(root, text="Show Answer", command=onClick)
button.pack()
root.mainloop()
if op == "/":
def onClick():
tkinter.messagebox.showinfo("Division", num1 / num2)
root = tkinter.Tk()
button = tkinter.Button(root, text="Show Answer", command=onClick)
button.pack()
root.mainloop()
else:
print("Invalid")
一切正常,直到出现错误提示“期望表达”为止,一切正常:
elif:
if op == "+":
def onClick():
tkinter.messagebox.showinfo("Addition", num1 + num2)
答案 0 :(得分:0)
就像错误消息指出的那样,elif
需要一个表达式。您需要将elif
和以下if
合并为一个语句:
elif op == "+":