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URL特殊字元轉義

URL中一些字元的特殊含義,基本編碼規則如下: 

1、空格換成加號(+) 
2、正斜槓(/)分隔目錄和子目錄 
3、問號(?)分隔URL和查詢 
4、百分號(%)制定特殊字元 
5、#號指定書籤 
6、&號分隔引數 

如果需要在URL中用到,需要將這些特殊字元換成相應的十六進位制的值 

字元                                   URL編碼值 
空格                                     %20 
"                                         %22 
#                                        %23 

%                                        %25 
&                                         %26 
(                                         %28 
)                                         %29 
+                                          %2B 
,                                          %2C 
/                                          %2F 

:                                          %3A 
;                                          %3B 
<                                          %3C 
=                                          %3D 
>                                          %3E 
?                                         %3F 
@                                         %4o 

\                                           %5C 

|                                           %7C