Question

将Cookie值检索到我使用过的表单：

if "HTTP_COOKIE" in os.environ:
    cookies = os.environ['HTTP_COOKIE']
    cookies = cookies.split(';')
    print cookies
    for cookie in cookies:
        cookie = cookie.split('=')
        (key,value) = cookie
        if key == "UserID":
            user_id = value
        if key == "Password":
            password = value

打印值：

print "User ID  = %s" % user_id 
print "Pasword = %s" % password

问题，只有：

User ID = XYZ

检查我明白了：

错误在Cookie字符串中，因为在第一个条件中它会获得true值，但其余的只有false

我在代码中打印出不同的部分，并在UserID之后的每个列表都有空格：

['UserID=XYZ', ' Password=XYZ123', ' Expires=Tuesday, 31-Dec-2007 23:12:40 GMT', ' Domain=www.tutorialspoint.com', ' Path=/perl', ' PHPSESSID=vgpp18anpc6vb4epi3udkumufp']

我如何剥离cookie以获得没有空格的键值对？

以下是代码：

#!C:/Python27/python.exe
import os

print "Set-Cookie:UserID=XYZ"
print "Set-Cookie:Password=XYZ123"
print "Set-Cookie:Expires=Tuesday, 31-Dec-2007 23:12:40 GMT"
print "Set-Cookie:Domain=www.tutorialspoint.com"
print "Set-Cookie:Path=/perl"
print "Content-type:text/html\r\n\r\n"
print "<html>"
print "<head>"
print "<title>Radio - Fourth CGI Program</title>"
print "</head>"
print "<body>"
print "<h2> Example </h2>"
print "</body>"
print "</html>"


if "HTTP_COOKIE" in os.environ:
    cookies = os.environ['HTTP_COOKIE']
    cookies = cookies.split(';')
    for cookie in cookies:
        cookie = cookie.split('=')
        (key,value) = cookie
        if key == "UserID":
            user_id = value
        if key == "Password":
            password = value
else:
    print "HTTP_COOKIE not set!"

print "User ID  = %s" % user_id
print "Pasword = %s" % password

Answer 1

错误在于条带功能。

strip():

仅删除文档开头和结尾的空格。
仅适用于字符串，不适用于列表

这就发生了：

if "HTTP_COOKIE" in os.environ:
    cookies = os.environ['HTTP_COOKIE'] 
    # cookies is now a string
    cookies = cookies.split(';')
    # cookies is now a list

解决方案是首先使用strip（）afecter cookies，但函数不会删除所有空格。

因为我可以使用replace(" ","")

if "HTTP_COOKIE" in os.environ:
        cookies = os.environ['HTTP_COOKIE'] 
        # cookies is now a string without spaces
        cookies = cookies.replace(" ","")
        # cookies is now a list
        cookies = cookies.split(";")

结果：

用户ID = XYZ Pasword = XYZ123

我如何删除Python中的空格？

1 个答案: