我想在ruby中打印Fixnum类的所有方法。当我输入Fixnum.methods时，它会提供我不理解的输出类型。
[:allocate, :superclass, :<=>, :module_exec, :class_exec, :<=, :>=, :==, :===, :include?, :included_modules, :ancestors, :name, :public_instance_methods, :instance_methods, :private_instance_methods, :protected_instance_methods
答案 0 :(得分：2)
您可能想要实例方法：
Fixnum.instance_methods
过滤来自Object：
Fixnum.instance_methods - Object.instance_methods
答案 1 :(得分：1)
考虑安装_htmlHelper.PartialAsync
<!-- Views/Shared/TagHelpers/TagsEditor -->
@model ModelExpression
<input asp-for="@Model" class="form-control" data-provider="tagseditor" />
是[HtmlTargetElement("tags-editor", Attributes = "for", TagStructure = TagStructure.WithoutEndTag)]
public class TagsEditorTagHelper : TagHelper
{
private HtmlHelper _htmlHelper;
private HtmlEncoder _htmlEncoder;
public TagsEditorTagHelper(IHtmlHelper htmlHelper, HtmlEncoder htmlEncoder)
{
_htmlHelper = htmlHelper as HtmlHelper;
_htmlEncoder = htmlEncoder;
}
[HtmlAttributeName("for")]
public ModelExpression For { get; set; }
[ViewContext]
public ViewContext ViewContext
{
set => _htmlHelper.Contextualize(value);
}
public override async Task ProcessAsync(TagHelperContext context, TagHelperOutput output)
{
output.TagName = null;
//exception thrown here:
var partial = await _htmlHelper.PartialAsync("TagHelpers/TagsEditor", For);
var writer = new StringWriter();
partial.WriteTo(writer, _htmlEncoder);
output.Content.SetHtmlContent(writer.ToString());
}
}
的更好版本，允许浏览类和对象“就像它们是文件夹一样”。参见例如
pry答案 2 :(得分：0)
这是一个ruby数组，方法名称用符号表示（另一个ruby东西）。你可以做到
Fixnum.methods.each { |method| puts method }
来自ruby 2.4.0及更高版本
Integer.methods.each { |method| puts method }
答案 3 :(得分：0)
您获得的输出是一个方法名称数组作为符号。所以，如果你想打印它们就像这样：
Fixnum.methods.each { |method| puts method }