等级计算器不存在

我有一个程序，应该基于一个整数输入来估计字母等级。我希望它能够连续运行，直到输入数字“-1”，然后退出。然而，每当我尝试运行它时，程序都会一遍又一遍地告诉我我的成绩，而且它不会做任何其他事情。这是我到目前为止。等级计算器不存在

import easygui 


grade = int(easygui.enterbox(msg="Enter a grade between 0 and 100: ")) 
while grade != -1: 

    if grade >= 90 and grade <100: 
     easygui.msgbox ("You got an A") 
    if grade >= 80 and grade <90: 
     easygui.msgbox ("You got a B") 
    if grade >= 70 and grade <80: 
     easygui.msgbox ("You got a C") 
    if grade >= 60 and grade <70: 
     easygui.msgbox ("You got a D") 
    if grade >= 0 and grade <60: 
     easygui.msgbox ("You got an F") 

else: raise SystemExit

来源

2016-03-14 TheSwune

您需要在while循环再取所输入的等级。

import easygui 


grade = int(easygui.enterbox(msg="Enter a grade between 0 and 100: ")) 
while grade != -1: 

    if grade >= 90 and grade <100: 
     easygui.msgbox ("You got an A") 
    if grade >= 80 and grade <90: 
     easygui.msgbox ("You got a B") 
    if grade >= 70 and grade <80: 
     easygui.msgbox ("You got a C") 
    if grade >= 60 and grade <70: 
     easygui.msgbox ("You got a D") 
    if grade >= 0 and grade <60: 
     easygui.msgbox ("You got an F") 

    grade = int(easygui.enterbox(msg="Enter a grade between 0 and 100: ")) 

else: raise SystemExit

来源

2016-03-14 22:06:31

虽然增加了取消按钮，但我的问题仍然没有解决。我希望它一直运行，只要它告诉我它会提示另一个的级别。谢谢你。 – TheSwune

它适合我。所以你甚至不需要看取消按钮。你继续输入值。它会给你你的成绩。当你输入-1时，它将被关闭。 –

你是在Python 2还是3？我正在运行2.7，它不工作 – TheSwune

import easygui

级= INT（easygui.enterbox（味精= “输入一个0级和100之间：”））！而等级= -1：

if grade >= 90 and grade <100: 
    easygui.msgbox ("You got an A") 
if grade >= 80 and grade <90: 
    easygui.msgbox ("You got a B") 
if grade >= 70 and grade <80: 
    easygui.msgbox ("You got a C") 
if grade >= 60 and grade <70: 
    easygui.msgbox ("You got a D") 
if grade >= 0 and grade <60: 
    easygui.msgbox ("You got an F") 

grade = int(easygui.enterbox(msg="Enter a grade between 0 and 100: "))

其他：加薪SystemExit

来源

2016-03-14 22:43:08 TheSwune

等级计算器不存在

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