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巧用jquery.qrcode在页面上生成二维码且支持中文

发布时间:2023-10-07 15:05:49 所属栏目:教程 来源:
导读:代码如下:

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<html xmlns="http://www.w3.org/1999/xhtml">

<head>

代码如下:
 
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
 
<html xmlns="http://www.w3.org/1999/xhtml">
 
<head>
 
    <title>使用jquery-qrcode生成二维码,支持中文</title>
 
    <script src="../Scripts/jquery-1.4.4.min.js" type="text/javascript"></script>
 
    <script src="jquery.qrcode.min.js" type="text/javascript"></script>
 
    <script type="text/javascript">
 
        function utf16to8(str) {
 
            var out, i, len, c;
 
            out = "";
 
            len = str.length;
 
            for (i = 0; i < len; i++) {
 
                c = str.charCodeAt(i);
 
                if ((c >= 0x0001) && (c <= 0x007F)) {
 
                    out += str.charAt(i);
 
                } else if (c > 0x07FF) {
 
                    out += String.fromCharCode(0xE0 | ((c >> 12) & 0x0F));
 
                    out += String.fromCharCode(0x80 | ((c >> 6) & 0x3F));
 
                    out += String.fromCharCode(0x80 | ((c >> 0) & 0x3F));
 
                } else {
 
                    out += String.fromCharCode(0xC0 | ((c >> 6) & 0x1F));
 
                    out += String.fromCharCode(0x80 | ((c >> 0) & 0x3F));
 
                }
 
            }
 
            return out;
 
        }
 
        $(function () {
 
            jQuery('#output').qrcode(utf16to8("今天天气不错"));
 
        })   
 
 

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