HTML表格是網頁開發中經常使用的元素之一，它可以很方便地展示一些數據。然而，有些時候我們會需要給表格添加線，這篇文章就會告訴你如何通過HTML代碼給表格設置線。 首先，我們需要了解一些表格的基本屬性。HTML中用`````````````````````標簽來創建表格，其中````````````````````````````表示表格的行，而```````````````則表示表格的列。表頭通常使用````````標簽來表示。 現在我們來看一下如何給表格加線。HTML中有兩種方式可以設置表格的線：使用``````````````````````````````````````屬性或使用CSS樣式。 1.使用`````````````````````屬性 在HTML代碼中，我們可以添加一個````````````````````````屬性，來為表格添加線。這個屬性可以接收如下幾個值：``````````````````````、``````````````````````````````````````、```````````````````````````````````````````````、``````````````````````````````````````````、``````````````````````````````````````````````。 示例代碼如下： ``````````````````````````````````````````````` ``````````````````````名字年齡性別小李18男小張22女``````````````````````````````````````````````` 2.使用CSS樣式 我們也可以使用CSS樣式來為表格設置線。首先，我們需要在`````````````````````````````````````````````````````````標簽中添加一個``````````````````````````````````````````屬性，來為表格添加一個獨特的ID或類。然后，我們可以在CSS文件或``````````````````````````````````````````標簽中使用如下代碼來為表格添加線： 示例代碼如下： ```````````````````````````````````````````` table { border-collapse: collapse; border: 1px solid black; } th, td { border: 1px solid black; } ``````````````````````````````````````````` 以上代碼中，`````````````````````````````````````````````````````````標簽用來將表格內部的邊框合并成一個，而``````````````````````````````````````````和``````````````````````````````````````````標簽則用來為表格內的所有單元格添加邊框。可以根據需要修改邊框的大小和顏色。 以上就是給HTML表格設置線的兩種方法。我們可以根據實際需求選擇適合自己的方式來美化表格。