汉字变Unicode

char2unicode.js

function c2u(c){
    var number = c.charCodeAt(0).toString(16);
    console.log(number)
    var padding = '0000';
    return '\\u'+padding.slice(0,4-number.length)+number;
}
function s2u(s){
    var len = s.length,result='';
    for (var i =0; i< len; i++){
        result+=c2u(s[i]);
    }
    return result;
}