Jquery. qrcode. js automatically generates two-dimensional code example

Source: Internet
Author: User

The html code is as follows:

The code is as follows: Copy code

<Input id = "txt" type = "text" value = "http://www.111cn.net/">
<Input id = "btn" type = "button" value = "generate QR code">
<Div id = "qrcode"> </div>
<Script src = "jquery. min. js"> </script>
<Script src = "qrcode. min _. js"> </script>

Css code

The code is as follows: Copy code

# Qrcode {
Width: 200px;
Height: 200px;
Margin-top: 15px;
}

Js code

The code is as follows: Copy code

// Instantiate QRCode and input the element ID
Var qrcode = new QRCode ("qrcode ");

Document. getElementById ("btn"). onclick = makeCode;

Function makeCode (){

// Obtain the link
Var ele = document. getElementById ("txt ");

// Generate a QR code and place it in the element
Qrcode. makeCode (ele. value );
}

The effect is as follows:

 

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