jeromeetienne / jquery-qrcode

qrcode generation standalone (doesn't depend on external services)
http://blog.jetienne.com/blog/2011/04/07/jquery-qrcode/
MIT License
4.85k stars 2.5k forks source link

二维码内容支持写入中文_zh 引入utf.js文件 #126

Open KaapoMarcus opened 5 years ago

KaapoMarcus commented 5 years ago

用法:引入js <script type="text/javascript" src="../normal/utf.js"></script> 二维码内容: $('#qrcode').qrcode(utf16to8("中文字词Test")); utf.js源码:

/ utf.js - UTF-8 <=> UTF-16 convertion

/*

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 utf8to16(str) { var out, i, len, c; var char2, char3;

out = "";
len = str.length;
i = 0;
while(i < len) {
c = str.charCodeAt(i++);
switch(c >> 4)
{ 
  case 0: case 1: case 2: case 3: case 4: case 5: case 6: case 7:
    // 0xxxxxxx
    out += str.charAt(i-1);
    break;
  case 12: case 13:
    // 110x xxxx   10xx xxxx
    char2 = str.charCodeAt(i++);
    out += String.fromCharCode(((c & 0x1F) << 6) | (char2 & 0x3F));
    break;
  case 14:
    // 1110 xxxx  10xx xxxx  10xx xxxx
    char2 = str.charCodeAt(i++);
    char3 = str.charCodeAt(i++);
    out += String.fromCharCode(((c & 0x0F) << 12) |
                   ((char2 & 0x3F) << 6) |
                   ((char3 & 0x3F) << 0));
    break;
}
}

return out;

}

wanqqq29 commented 3 years ago

感谢,这个办法有用!