如何在Python 3中修复无效语法? [英] How do I fix my invalid syntax in Python 3?

问题描述

在我的代码的底部，在类的下面，它说我在function.createtextfile()= create"text"的右边有一个无效的"text"语法.我在文本两边加上了引号，以便大家知道它在哪里说.这是我的代码

print(如果您要创建一个新的文本文件类型'create text'，如果您要添加文本类型'add text'，如果您想读取文件类型'read text' ')

At the bottom of my code, below the class, it says I have an invalid syntax for "text" on the right of function.createtextfile() = create "text". I put in quotation marks around text so you guys would know where it says that. This is my code

print("If you would like to create a new text file type ''create text'', If you would like to add text type ''add text'', If you would like to read your file type ''read text''")

class function:
    def createtextfile():
        text4 = '\nHello there'
        text2 = open('c:/Users/Me/Desktop/Victor.txt','w')
        text2.write(text)
        text2.close
    def addtext():
        text3 = open('c:/Users/Me/Desktop/Victor.txt','a')
        something = input('what would you like to add? ')
        text3.write(something)
        text3.close
    def readtext():
        justread = open('c:/Users/Me/Desktop/Victor.txt','r').read()
        print(justread)
        
function.createtextfile() = create text
function.addtext() = add text
function.readtext() = read text

我尝试过的事情:

我试图将括号放在文本"的前面，但这没做任何事情.

What I have tried:

I have tried to put parentheses in front of "text" but that didn''t do anything.

推荐答案

该语法有两种错误.首先，您的文本字符串不包含在引号中.其次，您不能将函数设置为等于某个值.

参见 6.模块-Python 3.4.8文档 [ ^ ]，了解如何正确定义和调用函数.

That syntax is wrong in two ways. Firstly your text strings are not enclosed in quotes. And secondly you cannot set a function equal to some value.

See 6. Modules — Python 3.4.8 documentation[^] for how to define and call functions correctly.

您的意思是否类似于

Do you mean something similar to

class function:
    def createtextfile(self, text):
        f = open('foo.txt','w')
        f.write(text)
        f.close()
    def addtext(self):
        f = open('foo.txt','a')
        something = input('what would you like to add? ')
        f.write(something)
        f.close()
    def readtext(self):
        justread = open('foo.txt','r').read()
        print(justread)


f = function()
f.createtextfile("foo\n")
f.addtext()
f.readtext()

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