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寫四個按鈕,分別是創建(空數組) ,添加(添加一個人) ,修改(修改人的各個屬性),刪除數組功能。數組元素里面是對象,對象是{name:xx,sex:xx,age:xx}??
2020-07-06
源自:JavaScript深入淺出 5-5
正在回答
不是哦,謝謝你
<!DOCTYPE?html>
<html?lang="en">
<head>
????<meta?charset="UTF-8">
????<meta?name="viewport"?content="width=device-width,?initial-scale=1.0">
????<title>Document</title>
</head>
<body>
????<input?type="button"?value="創建空數組"?onclick="cre()"/>
????<input?type="button"?value="添加對象"?onclick="ins()"/>
????<input?type="button"?value="修改數組"?onclick="cha()"/>
????<input?type="button"?value="刪除數組"?onclick="del()"/>
<script?type="text/javascript">
????function?cre(){
????????var?a=new?Array();
????????console.log(a);
????}
????function?ins(){
????????a={name:"xx",sex:"xx",age:"xx"};
????function?cha(){
????????a.name="是這樣嗎?"
????function?del(){
????????delete?a;
</script>????
</body>
</html>
舉報
由淺入深學習JS語言特性,且解析JS常見誤區,從入門到掌握
3 回答老師救我~~
2 回答老師,這一節中的調用子類方法不太對吧
2 回答應該可以吧
2 回答推薦本js書吧
1 回答constructor這句寫錯了吧
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2020-07-20
不是哦,謝謝你
2020-07-07
<!DOCTYPE?html>
<html?lang="en">
<head>
????<meta?charset="UTF-8">
????<meta?name="viewport"?content="width=device-width,?initial-scale=1.0">
????<title>Document</title>
</head>
<body>
????<input?type="button"?value="創建空數組"?onclick="cre()"/>
????<input?type="button"?value="添加對象"?onclick="ins()"/>
????<input?type="button"?value="修改數組"?onclick="cha()"/>
????<input?type="button"?value="刪除數組"?onclick="del()"/>
<script?type="text/javascript">
????function?cre(){
????????var?a=new?Array();
????????console.log(a);
????}
????function?ins(){
????????a={name:"xx",sex:"xx",age:"xx"};
????????console.log(a);
????}
????function?cha(){
????????a.name="是這樣嗎?"
????????console.log(a);
????}
????function?del(){
????????delete?a;
????????console.log(a);
????}
</script>????
</body>
</html>