Question

我想知道是否可以将两个变量放入一个if语句中，每个级别都包含一个块，包括current_text变量和answers变量。我想让代码更短，它有太多“如果”。比如说：

if level in easy:
     current_text = easy_level
     answers = easy_answers

这是代码：

    if level in easy:
        current_text = easy_level
    if level in medium:
        current_text = medium_level
    if level in hard:
        current_text = hard_level
    if level in easy:
        answers = easy_answers
    if level in medium:
        answers = medium_answers
    if level in hard:
        answers = hard_answers
    ask_questions(current_text, answers)

由于

Answer 1

是的，你可以做类似下面的代码。

print "Please enter a number between 1 and 20"
enter_num = int(raw_input("> "))

if enter_num >= 1 and enter_num <= 20: 
    print "You have entered a valid number"
    if enter_num % 2 == 0: #test for even/odd
             print "Your number is even"
             print enter_num * enter_num
    elif enter_num % 2 == 1: #test for even/odd
             print "Your number is odd"
             print enter_num * 3
 else:
    print "You've entered an invalid number"

详细说明可在此处找到。

https://blog.udemy.com/python-if-else/

你的最终if条件可能如下所示。

if level in easy:
    current_text = easy_level
    answers = easy_answers
if level in medium:
    current_text = medium_level
    answers = medium_answers
if level in hard:
    current_text = hard_level
    answers = hard_answers
ask_questions(current_text, answers)

Answer 2

简短的回答，是的。

if level in easy:
    current_text = easy_level
    answers = easy_answers
elif level in medium:
    current_text = medium_level
    answers = medium_answers
elif level in hard:
    current_text = hard_level
    answers = hard_answers
ask_questions(current_text, answers)

Answer 3

这看起来像您可能更喜欢使用字典调度的情况：

Close

...其中current_text = text[level] current_answers = answers[level]设置为level ...或其他任何内容。

Python：if语句有两个变量

3 个答案: