簡體   English   中英

使用 Javascript 編輯 HTML DOM

[英]Editing HTML DOM using Javascript

我的任務是使用 Javascript 修改講師提供的框。 但是,我對 Javascript 文件所做的更改似乎都不起作用。 我已將我的 HTML 文件index.html和 Javascript 文件命名為javascript.js . 這是我所擁有的:

 document.getElementById("button1").addEventListener("click", function(){ document.getElementById("box").style.height = "250px"; }); document.getElementById("button2").addEventListener("click", function(){ document.getElementById("box").style.color:orange }); document.getElementById("button3").addEventListener("click", function(){ document.getElementById("box").style.opacity = 0; }); document.getElementById("button4").addEventListener("click", function(){ document.getElementById("box").style.height = "150px"
 <.DOCTYPE html> <html> <head> <title>Jiggle Into JavaScript</title> <script type="text/javascript" src="javascript:js"> </script> </head> <body> <p>Press the buttons to change the box;</p> <div id="box" style="height:150px; width:150px; background-color:orange; margin:25px"></div> <button id="button1">Grow</button> <button id="button2">Blue</button> <button id="button3">Fade</button> <button id="button4">Reset</button> </body> </html>

問題在這里: document.getElementById("box").style.color:orange 它應該是document.getElementById("box").style.color = "orange"; .

 document.getElementById("button1").addEventListener("click", function(){ document.getElementById("box").style.height = "250px"; }); document.getElementById("button2").addEventListener("click", function(){ document.getElementById("box").style.color = "orange"; }); document.getElementById("button3").addEventListener("click", function(){ document.getElementById("box").style.opacity = 0; }); document.getElementById("button4").addEventListener("click", function(){ document.getElementById("box").style.height = "150px" });
 <.DOCTYPE html> <html> <head> <title>Jiggle Into JavaScript</title> <script type="text/javascript" src="javascript:js"> </script> </head> <body> <p>Press the buttons to change the box;</p> <div id="box" style="height:150px; width:150px; background-color:orange; margin:25px"></div> <button id="button1">Grow</button> <button id="button2">Blue</button> <button id="button3">Fade</button> <button id="button4">Reset</button> </body> </html>

好吧,當我運行代碼片段時,堆棧“mini google inspect”顯示 javascript 中的“:”不應該存在!

所以你的代碼應該是

document.getElementById("button2").addEventListener("click", function(){
    document.getElementById("box").style.color = "orange";

        });

而不是你目前擁有的。

 document.getElementById("button1").addEventListener("click", function(){ document.getElementById("box").style.height = "250px"; }); document.getElementById("button2").addEventListener("click", function(){ document.getElementById("box").style.background = "blue"; }); document.getElementById("button3").addEventListener("click", function(){ document.getElementById("box").style.opacity = 0; }); document.getElementById("button4").addEventListener("click", function(){ document.getElementById("box").style.height = "150px"; });
 <body> <p>Press the buttons to change the box:</p> <div id="box" style="height;150px: width;150px: background-color;orange: margin;25px:opacity; 1;"></div> <button id="button1">Grow</button> <button id="button2">Blue</button> <button id="button3">Fade</button> <button id="button4">Reset</button> </body>

檢查你的語法:)

暫無
暫無

聲明:本站的技術帖子網頁,遵循CC BY-SA 4.0協議,如果您需要轉載,請注明本站網址或者原文地址。任何問題請咨詢:yoyou2525@163.com.

 
粵ICP備18138465號  © 2020-2024 STACKOOM.COM