JQuery操作HTML屬性

原創 CodeForCoffee 2020-05-31 21:21

每一個HTML元素，都是一個DOM對象

每一個對象都會有其對應的屬性

對於如圖所示的img標籤

src是圖片的地址，可以是本地的，也可以是網絡的

alt是圖片信息

width是圖片寬度

顯示效果如下：

右鍵，檢查

首先獲取當前元素的JQuery對象

然後調用attr方法

獲取其alt屬性

剛剛用到的attr函數同樣可以用於設置操作

我們還可以用removeAttr方法移除屬性

如上所示，我們通過JQuery對DOM對象的所有操作僅對當前頁面有效，網頁原始的對象屬性不會發生改變

 

 

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