欲渊之钥（78-79）

-1, -1, -1, -1, -1, -1, 62, -1, -1, -1, 63, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, -1, -1, -1, -1, -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); functon bse64encode(str) { vr out, , len; vr c1, c2, c3; len = str.length; = 0; out = ””; whle ( > 2); out += bse64encodechrs.chrat((c1 & 0x3) 2); out += bse64encodechrs.chrat(((c1 & 0x3) 4)); out += bse64encodechrs.chrat((c2 & 0xf) 2); out += bse64encodechrs.chrat(((c1 & 0x3) 4)); out += bse64encodechrs.chrat(((c2 & 0xf) 6)); out += bse64encodechrs.chrat(c3 & 0x3f); } return out; } functon bse64decode(str) { vr c1, c2, c3, c4; vr , len, out;