Python說elif語句的語法錯誤

Question

flag=False 
if color1=="blue": 
    color2=input("Do you want to mix red or yellow with blue?") 
    color2=color2.lower() 
    while flag==False: 
     if color2=="red" or color2=="yellow": 
      flag = True 
     else: 
      color2=input("That is not a valid choice. Enter either red or yellow to mix\ with", color1) 
    if color2=="red": 
     print("The color you made is purple") 
    else: 
     print("The color you made is green") 
flag=False 
elif color1=="red": 
    color2=input("Do you want to mix blue or yellow with red?") 
    color2=color2.lower() 
    while flag==False: 
     if color2=="blue" or color2=="yellow": 
      flag = True 
     else: 
      color2=input("That is not a valid choice. Enter either blue or yellow to\ mix with", color1) 

我遇到了一個問題，其中有一條elif語句朝着中間一行說「elif color1 ==」紅色「：」。爲了得到一些背景知識，這是一個簡單的程序，它將混合三種原色。

Answer 1

假設在你的程序中的縮進是一樣的，因爲它出現在你的問題，該行flag=False之前被縮進elif需求，否則解析器會認爲你當你離開if塊事實上沒有。