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                ??碼云GVP開源項目 12k star Uniapp+ElementUI 功能強大 支持多語言、二開方便! 廣告
                事件就是用戶或瀏覽器自身執行的某種動作。諸如click、load和mouseover,都是事件的名字。而響應某個事件的函數就叫做[事件處理程序]。事件處理程序的名字以'on'開頭。因此click事件的事件處理程序就是onclick。 ## 1.2.1HTML事件處理程序 ~~~ <input value="提交" type="button" onclick="alert('hello world')"> ~~~ ~~~ <input value="提交" type="button" onclick="show()"> <script> function show(){ alert(1) } </script> ~~~ ~~~ <input value="提交" type="button" onclick="alert(value)"> ~~~ ~~~ <form> <input type="text" name="username" value="cheng"> <input type="button" value="輸出名字" onclick="alert(username.value)"> </form> ~~~
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