Question

当我从python 2.7到python 3.5时，我开始遇到ELIF语句问题。我正在使用PyCharm，所以当我输入elif语句时，它会显示错误并显示1

当我按下它时会发生这种情况，但代码仍然不起作用......

不允许我发布这张照片，它会在评论中

无论如何，由于某种原因，我无法发布代码，所以如果你需要他就会在评论中提出帮助，如果可以的话请帮助我，因为这不是第一次发生，我无法在任何地方找到帮助而且很好＃＆＃ 39;真的很烦人......

Answer 1

您的第一个错误是没有初始if语句以及game = '1':而不是game == '1':。如果您查看我的代码，我已修复了这些错误并修复了缩进，因为它导致了一些错误

import os

print("\nWelcome, enter Your name please")
name = input("--> ")

def username(name):         #NAME
    while len(name) < 2:
        print("There was an error")
        name = input("\nPlease enter Your name again -->")
    else:
        print("Hello,", name)
username(name)

def menu():         #MENU
    print("\nWelcome to the menu")
    print("From here You can chose the game")
    print("For now, we have only 3 game but there will be plenty more!")
    print("Chose game by it's number  ")
    print("1 - Coin flip| 2 - Horse racing| 3 - Loto|")
menu()
game = int(input("--> "))

def choice(game):           #CHOOSING GAME
    while game > 3 or game < 1:
        print("\nSomething went wrong, enter game you want again (only numbers 1, 2, 3!")
        game = int(input("--> "))
    if game == '1': #if statement first and two "=" signs
        print("You chose Coin flip game")
        os.system('python coinflip.py')
    elif game == '2': #use tab to indent properly
        print("You chose Horse racing game")
        os.system('python horseracing.py')
    elif game == '3': #keep indentations the same throughout
        print("You chose Loto game")
        os.system("python loto.py")
choice(game)

Answer 2

您需要先输入“if”和“elif”。所以它应该是这样的：

def choice(game):           #CHOOSING GAME
while game > 3 or game < 1:
    print("\nSomething went wrong, enter game you want again (only numbers 1, 2, 3!")
    game = int(input("--> "))
    if game == '1': #bug here
        print("You chose Coin flip game")
        os.system('python coinflip.py')
    elif game == '2': #and here
       print("You chose Horse racing game")
        os.system('python horseracing.py')
    elif game == '3': #and here
        print("You chose Loto game")
        os.system("python loto.py")

为什么我得到ELIF无效的语法错误？

2 个答案: