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单选题

You create a Web page that contains the following code. You need to provide the following implementation. Each time the AddFile button is clicked, a new div element is created. The new div element is appended after the other file upload div elements and before the AddFile span. Each new element has a unique identifier. Which code segment should you use?()

发布日期:2021-01-28

You create a Web page that contains the following ...
A

$(#AddFile).click(function () {var id = File + ++lastId; var item =$(.File:first).clone(true); $(input:file, item).attr({ id: id, name: id }); item.insertBefore(#AddFile); });

B

$(#AddFile).click(function () {var id = File + ++lastId;$(.File:first).clone(true).attr({ id: id, name: id }).insertBefore(#AddFile); });

C

$(#AddFile).click(function () {var id = File + ++lastId; });

D

$(#AddFile).click(function () {var id = File + ++lastId;var item = $(.File:first).clone(true); $(input:file, item).attr({ id: id, name: id }); item.insertAfter(input[type=file]); });

标签: create web page code provide

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