web前端开发知识点总结

HTML 知识总结span行级元素，多个同行块级元素，独占一行块级元素，前后保留一行标题标签，h1~h6表6个等级，加粗，前后保留一行width：设置宽度height：设置高度alt：图片加载失败显示的文本div文本类ph图片标签imgcolor：颜色水平线常用标签hrsize：高度（粗细）width：宽度（长度）herf：超链接转到的地址超链接atarget_self:默认值，在当前页面打开_blank:在新窗口打开带标题的框fieldsetlegend设置标题disc：实心圆无序列表列表标签有序列表ulsquare：小方块olcircle：空心圆tr表示行th表示标题单元格，居中、加粗td表格标签caption表示一个单元格表示标题，定义在第一行，居中rowspan设置单元格占的行数colspan设置单元格占的列数action表单提交地址get：显示提交参数，将参数用?和&拼接到url上带到服务器端methodpost：隐式提交参数optgroup 表示分组,分组不能选,只能选分组中的option下拉菜单selected默认选中multiple 设置下拉菜单为多选模式表单项

rows: 显示文本的行数(高度)文本域cols: 显示文本的列数(宽度)name：参数名size：显示字符长度（控制文本框长度）maxlength：最大可输入字符数input文本框type=“text”placeholder：提示内容disabled：不会被提交到服务器readonly：只读（会被提交到服务器）value：默认值密码框type=“password”单选按钮type=“radio”复选框type=“checkbox”文件选择框type=“file”按钮type=“button”提交type=“submit”checked：默认选中input按钮重置type=“reset”noresize：不能改变框架大小frame：表示框架scolling：是否显示滚动条（yes、no、auto）设置框架集在纵向上的拆分策略设置框架集在横向上的拆分策略rowscolsborder框架集<frameset>框架边框的宽度borderColor框架边框颜色frameBorder设置框架是否有边框 (yes|no)_blank:新窗口中打开_self:在当前窗口打开框架集中的超链接打开方式target_parent:父窗口中打开_top在最顶层窗口中打开frameName：在对应name框架打开ifame在页面中嵌入框架dl、dt、dd其他标签<dl><dt>数码</dt> <!-- dt不会缩进 --><dd>手机</dd> <!-- dd会缩进 --></dl>marquee：滚动标签<img src="usemap_img.jpg"usemap="#yifuMap"><map name="yifuMap" id="yifuMap"><areashape="circle"coords="309,257,20"target="_blank"href="http://www.baidu.com/s?wd=帽子"><areashape="poly"coords="258,316,277,283,3...</div></div><div class="pre-detail-bottom"><a class="pre-detail-more" href="javascript:;" kes-height="0">查看更多 <i 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class="seo-hidden-text" aria-hidden="true"><p>HTML 知识总结span行级元素，多个同行块级元素，独占一行块级元素，前后保留一行标题标签，h1~h6表6个等级，加粗，前后保留一行width：设置宽度height：设置高度alt：图片加载失败显示的文本div文本类ph图片标签imgcolor：颜色水平线常用标签hrsize：高度（粗细）width：宽度（长度）herf：超链接转到的地址超链接atarget_self:默认值，在当前页面打开_blank:在新窗口打开带标题的框fieldsetlegend设置标题disc：实心圆无序列表列表标签有序列表ulsquare：小方块olcircle：空心圆tr表示行th表示标题单元格，居中、加粗td表格标签caption表示一个单元格表示标题，定义在第一行，居中rowspan设置单元格占的行数colspan设置单元格占的列数action表单提交地址get：显示提交参数，将参数用</p> <p>和&拼接到url上带到服务器端methodpost：隐式提交参数optgroup 表示分组,分组不能选,只能选分组中的option下拉菜单selected默认选中multiple 设置下拉菜单为多选模式表单项rows: 显示文本的行数(高度)文本域cols: 显示文本的列数(宽度)name：参数名size：显示字符长度（控制文本框长度）maxlength：最大可输入字符数input文本框type=“text”placeholder：提示内容disabled：不会被提交到服务器readonly：只读（会被提交到服务器）value：默认值密码框type=“password”单选按钮type=“radio”复选框type=“checkbox”文件选择框type=“file”按钮type=“button”提交type=“submit”checked：默认选中input按钮重置type=“reset”noresiz</p></div><div class="cat-relate bg-white"><div class="hd"><h3>您可能关注的文档</h3></div><div class="bd"><ul class="list-txt"><li><a 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