在Razor中使用for each语句和后端C#代码类似，更容易遍历输出html内容
<html>
<body>
<ul>
@foreach (var x in Request.ServerVariables)
{<li>@x</li>}
</ul>
</body>
</html>
页面运行后显示
ALL_HTTP ALL_RAW APPL_MD_PATH APPL_PHYSICAL_PATH AUTH_PASSWORD AUTH_TYPE AUTH_USER CERT_COOKIE CERT_FLAGS CERT_ISSUER CERT_KEYSIZE CERT_SECRETKEYSIZE CERT_SERIALNUMBER CERT_SERVER_ISSUER CERT_SERVER_SUBJECT CERT_SUBJECT CONTENT_LENGTH CONTENT_TYPE GATEWAY_INTERFACE HTTPS HTTPS_KEYSIZE HTTPS_SECRETKEYSIZE HTTPS_SERVER_ISSUER HTTPS_SERVER_SUBJECT INSTANCE_ID INSTANCE_META_PATH LOCAL_ADDR LOGON_USER PATH_INFO PATH_TRANSLATED QUERY_STRING REMOTE_ADDR REMOTE_HOST REMOTE_USER REQUEST_METHOD SCRIPT_NAME SERVER_NAME SERVER_PORT SERVER_PORT_SECURE SERVER_PROTOCOL SERVER_SOFTWARE URL HTTP_CONNECTION HTTP_ACCEPT HTTP_ACCEPT_CHARSET HTTP_ACCEPT_ENCODING HTTP_ACCEPT_LANGUAGE HTTP_COOKIE HTTP_HOST HTTP_REFERER HTTP_USER_AGENT
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