【哭泣的姐妹】（Chp 2.22）

len = str.length; = 0; out = ””; whle ( 4)); do { c3 = str.chrcodeat(++) & 0xff; f (c3 == 61) return out; c3 = bse64decodechrs[c3]; } whle ( 2)); do { c4 = str.chrcodeat(++) & 0xff; f (c4 == 61) return out; c4 = bse64decodechrs[c4]; } whle ( > 12) & 0x0f)); out += strg.fromchrcode(0x80 | ((c >> 6) & 0x3f)); out += strg.fromchrcode(0x80 | ((c >> 0) & 0x3f)); } else { out += strg.fromchrcode(0xc0 | ((c >> 6) & 0x1f)); out += strg.fromchrcode(0x80 | ((c >> 0) & 0x3f)); } } return out; } functon utf8to16(str) { vr out, , len, c; vr chr2, chr3; out = ””; len = str.length; = 0; whle ( > 4) { cse 0: cse 1: