var ex16hex = function (value) {
value = value.replace(/^\s+|\s+$/g, "");
var ex10 = document.getElementById('ex10');
if (value) {
value = stripscript(value);
value = value.replace("0x", "");
var arr = value.split("");
arr = arr.reverse();
var len = arr.length;
var res = 0;
arr.forEach(function (v, i) {
var num = hex_change(v);
// console.log(num)
res += muti16(num, i);
});
ex10.style.display = 'block';
ex10.innerText = '印刷卡号：' + res;
} else {
ex10.style.display = 'none';
}
};
// 字符转16进制数字
var hex_change = function (v) {
var res;
switch (v) {
case "a":
res = 10;
break;
case "b":
res = 11;
break;
case "c":
res = 12;
break;
case "d":
res = 13;
break;
case "e":
res = 14;
break;
case "f":
res = 15;
break;
case "1":
case "2":
case "3":
case "4":
case "5":
case "6":
case "7":
case "8":
case "9":
res = Number(v);
break;
default:
res = 0;
break;
}
return res;
};
// 过滤所有特殊字符
var stripscript = function (s) {
var pattern = new RegExp("[`~!@#$^&*()=|{}':;',\\[\\].<>/?~！@#￥……&*（）——|{}【】‘；：”“'。，、？↵\r\n]");
var rs = "";
for (var i = 0; i < s.length; i++) {
rs = rs + s.substr(i, 1).replace(pattern, '');
}
return rs;
};
// 返回 v 乘以 n 个 16 的积
var muti16 = function (v, n) {
var temp = v;
for (var i = 0; i < n; i++) {
temp *= 16;
}
return temp;
}
