压痕问题！（Python 2.7）

Question

这怎么了？（我只是个初学者，没什么复杂的，拜托了！）在

#!usr/bin/python

import os
import sys
import pdb
import time
import array

red = chr(00), chr(00), chr(255)
blue = chr(255), chr(00), chr(00)

print "Monochrome Bitmap Color Changer"
print "Supported colors: "
print "Black, White, Blue, Red, Yellow,"
print "Green, Orange, Purple, Pink, Brown, Grey"
print ""

filename = raw_input("Please enter filename or directory of monochrome bitmap: ")
whitevalue = raw_input("Change all white pixels to? ")
blackvalue = raw_input("Change all black pixels to? ")
with open (filename, 'r+b') as f:
    f.seek(54)
    if whitevalue is "red" or "Red":
        f.write(red)
    elif whitevalue is "blue" or "Blue":
            f.write(blue)
            f.seek(58)
            if blackvalue is "red" or "Red":
        f.write(red)
        elif blackvalue is "blue" or "Blue":
            f.write(blue)
            exit
    #print "Done"
    #time.sleep(3)
    #exit

在第二条f.write(red)行之后，它显示了一个略带粉红色的高亮显示，并显示：

“取消缩进不匹配任何外部缩进级别”

这意味着什么？如何帮助/修复它？在

非常感谢！在

Answer 1

您的elif不会以属于if语句的方式缩进。在

改成这样：

with open (filename, 'r+b') as f:
    f.seek(54)
    if whitevalue is "red" or "Red":
        f.write(red)
    elif whitevalue is "blue" or "Blue":
        f.write(blue)
        f.seek(58)
        if blackvalue is "red" or "Red":
            f.write(red)
        elif blackvalue is "blue" or "Blue":
            f.write(blue)
        exit