JS字符转换问题（一下js在网页中执行后得到图中的结果，如果这段代码在c#里面怎么实现）
0
[待解决问题]
<table>
<script language="JavaScript">
(
function (a) {
'use strict';
var b = function () { },
logger = { warn: b, error: b },
padding = '=',
chrTable = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz' + '0123456789+/',
binTable = [-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 62, -1, -1, -1, 63, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, -1, -1, -1, 0, -1, -1, -1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, -1, -1, -1, -1, -1, -1, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, -1, -1, -1, -1, -1];
function c(f) {
var g = [], h = 0, i, j;
f = encodeURI(f);
i = f.length;
while (h < i) {
j = f[h]; h += 1; if ('%' !== j) {
g.push(j.charCodeAt(0))
} else { j = f[h] + f[h + 1]; g.push(parseInt(j, 16)); h += 2 }
};
return g
};
function d(f) {
var g = [], h = 0, i = f.length, j, k, l; while (h < i) {
j = f[h]; k = f[h + 1]; l = f[h + 2];
if (128 > j) {
g.push(String.fromCharCode(j)); h += 1
}
else if (191 < j && j < 224) {
g.push(String.fromCharCode(((j & 31) << 6) | (k & 63))); h += 2
}
else {
g.push(String.fromCharCode(((j & 15) << 12) | ((k & 63) << 6) | (l & 63))); h += 3
}
};
return g.join('')
};
function e(f) {
var g, h, i = 0, j = [], k = 0, l = 0;
for (i = 0; i < f.length; i++) {
h = f.charCodeAt(i);
g = binTable[h & 0x7F];
if (-1 === g)
{ } else {
l = (l << 6) | g; k += 6;
if (k >= 8) {
k -= 8;
if (padding !== f.charAt(i)) {
j.push((l >> k) & 0xFF)
};
l &= (1 << k) - 1
}
}
};
if (k) {
return null
};
return d(j)
};
a.b4 = { de: e }
}(window));
document.write(
b4.de("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")
);
</script>
</table>
