尝试在 python 中定义多个函数时出现语法错误? [英] Syntax Error when trying to define multiple functions in python?

问题描述

我正在尝试学习 Python，所以我只是在编写一些简单的程序.我写了这两段代码来定义我想在程序中使用的两个函数，它们都做他们想做的事，但是当我尝试将它们粘贴到 IDLE 时，它说第二个 def 存在语法错误.知道这是什么吗?

I'm trying to learn python, so I'm just writing some simple programs. I wrote these two bits of code to define two of the functions I want to use in the program, and they both do what they want but when I try to paste them into IDLE it says there is a syntax error at the second def. Any idea what this is?

代码如下:

def print_seq1(number):

    number = input("Pick a number: ")

    print " "
    while number != 1:
        if number%2==0:
            print number
            number = number/2
        else:
            print number
            number = number*3 + 1
    print number
    print " "
    choice = 0  

def print_seq2(number):

        number = input("Pick a number: ")
        print " "
        while number != 1:
            if number%2==0:
                print number,
                number = number/2
            else:
                print number,
                number = number*3 + 1
        print number
        print " "
        choice = 0

推荐答案

交互式解释器(又名 REPL，只是解释器"和许多其他术语)通常只需要一个顶级语句(函数定义、类定义), 一个全局赋值, 一个循环, ...) 一次.你给它两个，它很困惑.尝试输入第一个 def，一个空行以确认并实际运行您的输入，然后输入第二个 def.

Interactive interpreters (a.k.a. REPL, just "interpreter", and many other terms) usually expect only a single top-level statement (a function definition, a class definition, a global assignment, a loop, ...) at a time. You give it two and it's confused. Try putting in the first def, a blank line to confirm and actually run your input, then the second def.

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