Ruby - CGI 有用的方法

CGI::new([ level="query"])

创建一个 CGI 对象。级别可以是以下选项之一。如果指定了 HTML 级别之一，则定义以下方法来生成符合该级别的输出 -

• 查询- 没有生成 HTML 输出

• html3 - HTML3.2

• html4 - HTML4.0 严格

• html4Tr - HTML4.0 过渡

• html4Fr - HTML4.0 框架集

CGI::转义(str)

使用 URL 编码转义不安全的字符串。

CGI::unescape(str)

扩展已使用 URL 编码转义的字符串。

CGI::escapeHTML(str)

转义 HTML 特殊字符，包括：& < >。

CGI::unescapeHTML(str)

扩展转义的 HTML 特殊字符，包括：& < >。

CGI::escapeElement( str[, 元素...])

对指定 HTML 元素中的 HTML 特殊字符进行转义。

CGI::unescapeElement( str, 元素[, 元素...])

扩展指定 HTML 元素中转义的 HTML 特殊字符。

CGI::解析（查询）

解析查询并返回包含其键值对的哈希。

CGI::漂亮（字符串[，领导者=“”]）

返回 HTML 字符串的格式整齐的版本。如果指定了前导，则将其写在每行的开头。前导符的默认值为两个空格。

CGI::rfc1123_date（时间）

根据 RFC-1123 设置数据和时间的格式（例如，Tue, 2 Jun 2008 00:00:00 GMT）。

c[姓名]

返回一个数组，其中包含与name对应的字段名称的值。

c.checkbox( 名称[, 值[, 检查= false]])

c.checkbox(选项)

Returns an HTML string defining a checkbox field. Tag attributes may be specified in a hash passed as an argument.

c.checkbox_group( name, value...)

c.checkbox_group( options)

Returns an HTML string defining a checkbox group. Tag attributes may be specified in a hash passed as an argument.

c.file_field( name[, size = 20[, max]])

c.file_field( options)

Returns an HTML string defining a file field.

c.form([ method="post"[, url]]) { ...}

c.form( options)

Returns an HTML string defining a form. If a block is specified, the string produced by its output creates the contents of the form. Tag attributes may be specified in a hash passed as an argument.

c.cookies

Returns a hash containing a CGI::Cookie object containing keys and values from a cookie.

c.header([ header])

Returns a CGI header containing the information in header. If header is a hash, its key-value pairs are used to create the header.

c.hidden( name[, value])

c.hidden( options)

Returns an HTML string defining a HIDDEN field. Tag attributes may be specified in a hash passed as an argument.

c.image_button( url[, name[, alt]])

c.image_button( options)

Returns an HTML string defining an image button. Tag attributes may be specified in a hash passed as an argument.

c.keys

Returns an array containing the field names from the form.

c.key?( name)

c.has_key?( name)

c.include?( name)

Returns true if the form contains the specified field name.

c.multipart_form([ url[, encode]]) { ...}

c.multipart_form( options) { ...}

Returns an HTML string defining a multipart form. If a block is specified, the string produced by its output creates the contents of the form. Tag attributes may be specified in a hash passed as an argument.

c.out([ header]) { ...}

Generates HTML output. Uses the string produced by the block's output to create the body of the page.

c.params

Returns a hash containing field names and values from the form.

c.params = hash

Sets field names and values in the form using a hash.

c.password_field( name[, value[, size = 40[, max]]])

c.password_field( options)

Returns an HTML string defining a password field. Tag attributes may be specified in a hash passed as an argument.

c.popup_menu( name, value...)

c.popup_menu( options)

c.scrolling_list( name, value...)

c.scrolling_list( options)

Returns an HTML string defining a pop-up menu. Tag attributes may be specified in a hash passed as an argument.

c.radio_button( name[, value[, checked = false]])

c.radio_button( options)

Returns an HTML string defining a radio button. Tag attributes may be specified in a hash passed as an argument.

c.radio_group( name, value...)

c.radio_group( options)

Returns an HTML string defining a radio button group. Tag attributes may be specified in a hash passed as an argument.

c.reset( name[, value])

c.reset( options)

Returns an HTML string defining a reset button. Tag attributes may be specified in a hash passed as an argument.

c.text_field( name[, value[, size = 40[, max]]])

c.text_field( options)

Returns an HTML string defining a text field. Tag attributes may be specified in a hash passed as an argument.

c.textarea( name[, cols = 70[, rows = 10]]) { ...}

c.textarea( options) { ...}

Returns an HTML string defining a text area. If a block is specified, the string produced by its output creates the contents of the text area. Tag attributes may be specified in a hash passed as an argument.