使用我的If,Else和Elif语句(Python)的"语法错误"

Question

这是我的代码:

print "Hello, and welcome to the Slightly Interactive Autobiography of Robbie Wood."
print "Lets get started, shall we? What chapter would you like to read first?"
chapter = raw_input("Please type either 'Chapter 1', 'Chapter 2' or 'Chapter 3': ")

if chapter = "Chapter 1":
    print "Chapter 1"
    print chapter_one

else chapter = "Chapter 2":
    print "Chapter 2"
    print chapter_two

elif chapter = "Chapter 3":
    print "Chapter 3"
    print chapter_three

elif:
    chapters = raw_input("Please type either 'Chapter 1', 'Chapter 2', or 'Chapter 3': ")

# Variables - Chapters
chapter_one = "text here..."
chapter_two = "text here..."
chapter_three = "text here..."

这是来自终端的确切错误消息:

Last login: Fri Sep  7 17:22:59 on ttys000
Robbies-MacBook-Pro:~ robbiewood$ /var/folders/y6/kx37qgbs34124ztdgb4tphs00000gn/T/Cleanup\ At\ Startup/autobiography-368756862.498.py.command ; exit;
File "/private/var/folders/y6/kx37qgbs34124ztdgb4tphs00000gn/T/Cleanup At Startup/autobiography-368756862.497.py", line 9
    else chapter = "Chapter 2":
               ^
SyntaxError: invalid syntax
logout

[Process completed]

有人可以帮我解决这个问题吗？我是一名初学者Python编码器,我正在编写一个学校项目的"轻微互动自传".

Answer 1

第二组应该是a elif,最后一组是你的else情况,所有这些都应该==用于相等比较,而不是=变量赋值:

# Define these variables *before* you use them...
# Variables - Chapters
chapter_one = "text here..."
chapter_two = "text here..."
chapter_three = "text here..."

if chapter == "Chapter 1":
    print "Chapter 1"
    print chapter_one

# This one should be an elif
elif chapter == "Chapter 2":
    print "Chapter 2"
    print chapter_two

elif chapter == "Chapter 3":
    print "Chapter 3"
    print chapter_three
# And the last one is an else
else:
    chapters = raw_input("Please type either 'Chapter 1', 'Chapter 2', or 'Chapter 3': ")