Question

我知道处理文件/目录路径的正确方法是使用Path.AltDirectorySeparatorChar，但这是否适用于html源路径？

或者，反斜杠是html所需的路径分隔符吗？我总是使用反斜杠（即<img src="images\birthdaysurprise.jpg" />）完成它，但现在我想知道我是否一直在不正确地做这件事？

Answer 1

虽然我不知道法律的确切字母，但对所有路径分隔符使用正斜杠。甚至Windows也可以在其API中使用正斜杠作为分隔符。

使用反斜杠可以在Windows平台下工作，但是：

看起来很奇怪
如果转移到基于* nix的系统，将会死亡和堵嘴。
最终可能会破坏一些假设正斜杠的代码
\在许多情况下启动转义序列，因此\n可能会以意想不到的方式转换。

Answer 2

“法律条文”是正斜杠（'/'）是这样做的方式。 Per RFC 2396, Uniform Resource Identifiers (URI): Generic Syntax，§3，“URI语法组件”：

The URI syntax does not require that the scheme-specific-part have
any general structure or set of semantics which is common among all
URI.  However, a subset of URI do share a common syntax for
representing hierarchical relationships within the namespace.  This
"generic URI" syntax consists of a sequence of four main components:

   <scheme>://<authority><path>?<query>

each of which, except <scheme>, may be absent from a particular URI.
For example, some URI schemes do not allow an <authority> component,
and others do not use a <query> component.

   absoluteURI   = scheme ":" ( hier_part | opaque_part )

URI that are hierarchical in nature use the slash "/" character for
separating hierarchical components.  For some file systems, a "/"
character (used to denote the hierarchical structure of a URI) is the
delimiter used to construct a file name hierarchy, and thus the URI
path will look similar to a file pathname.  This does NOT imply that
the resource is a file or that the URI maps to an actual filesystem
pathname.

   hier_part     = ( net_path | abs_path ) [ "?" query ]

   net_path      = "//" authority [ abs_path ]

   abs_path      = "/"  path_segments

URI that do not make use of the slash "/" character for separating
hierarchical components are considered opaque by the generic URI
parser.

   opaque_part   = uric_no_slash *uric

   uric_no_slash = unreserved | escaped | ";" | "?" | ":" | "@" |
                   "&" | "=" | "+" | "$" | ","

We use the term <path> to refer to both the <abs_path> and
<opaque_part> constructs, since they are mutually exclusive for any
given URI and can be parsed as a single component.

您的URI需要最少数量的正斜杠才能将方案与权限分开。 URI的其余部分（路径和查询组件）仅在相关方案和权限<的上下文中具有意义/ em>的。但是，有几件事需要考虑：

其中，URI 路径是不文件系统路径（除非URI方案为file（file://...）。URI路径为只是具有权限含义的标识符可能（或可能不）映射到特定文件系统条目。

两个不透明的URI路径（不使用'/'作为路径分隔符的路径）无法通过通用工具很好地处理。此外，所讨论的路径不一定是不透明的：意味着将通用工具应用于不透明的URI可能会导致意外行为。

有没有一种正确的方法来创建一个html src路径？

2 个答案: