未定义/未使用的变量或意外缩进

Question

我不断得到这两个。如果我设法修复一个，另一个就会出现。这将得到引号的未定义/未使用的变量错误。import randomdef primary():  print("Keep it logically awesome.")   f = open("quotes.txt")  quotes = f.readlines()  f.close()last = len (quotes) - 1rnd = random.randint(0, last)  print(quotes[rnd])if __name__== "__main__":primary()如果我简单地从中删除所有空格，print (quotes[rnd])我会得到“意外缩进”

Answer 1

正确的代码如下所示。

你必须在几个地方意图。

import random

def primary():

    print("Keep it logically awesome.")

    f = open("quotes.txt")

    quotes = f.readlines()

    f.close()

    last = len (quotes) - 1  #this shud be intented

    rnd = random.randint(0, last) #this shud also be intented

    print(quotes[rnd]) #this shud be intented

if __name__== "__main__":

    primary() #if statements shud always be intented

编写单行 if 语句的另一种方法是

if __name__== "__main__": primary()

Answer 2

import random

def primary():

    print("Keep it logically awesome.")

 

    f = open("quotes.txt")

    quotes = f.readlines()

    f.close()

    last = len(quotes) - 1

    rnd = random.randint(0, last)

    print(quotes[rnd])

if __name__== "__main__":

    primary()

希望这对您有所帮助。享受！

Answer 3

import random

def primary():

    print("Keep it logically awesome.")

    f = open("quotes.txt")

    quotes = f.readlines()

    f.close()

    last = len(quotes) - 1

    rnd = random.randint(0, last)

    print(quotes[rnd])

if __name__== "__main__":

  primary()