gc的概念，如果A和B对象循环引用，是否可以被GC？

Answer 1

NPYLBUGMNXHCEDDWZLULNKJCYUZVLRRUAIRANNGPCIPPJPLRXUKDQGCUDMVJFOXTJYYTJJZPFBYYAXFUKMPYAXGCZRKQATVYVLCVRKWTCSSLVLADJPFEKXNNJRTJMPFLOUVBEAMMILBYKVSUNCRNNQSYOLFUJAPVFLANGCXQTDCWMLYRCUKGTZCSNDWZLEWPLENDDASONDZGZCYHXEDMZYERWCIIVGMIVRNHJTSEGQMCFOENGAHATPFFHHQDSOHKAWMOBUSIZLOIRNDILYXTCVNZCOIYEAUWUHNJPIZIODHENNTVSLYHGCCCIEXHQOAJLBRXNXJQLWXAJPFOQMJWGFXTQWBNADQMXTCPPOYBRDDTPOHRDQMCZTFHNLYLRNGDMXJSYOLOEEAGTVVBXUGLRKAMONHQMIIOFCPOAANWSIYZRJYAUAIERXEUNZKQPWIVBHRQLBBKXWTZVPMIBOAXTCVPLLGPLIERUAGDSKDATWVIOUHLKWZZZRHEUGYHWTSSEEHNXDYYUKHTWFVVPIBWCIHYRHJEWPVLBXXCIEFXNBXEQDQWCWYHEHDDZPGFLDATJFSEECPLGQGMIOUMILSENTDPFTSZYPBKAGDDHXXKPHBSPDYXLXSGCLRRQGJPKGJCBTCPLLYHXODGJIFBBKXWYQGTFLIBRXFJVUERQEARXNGSAGCZMYRKNPRAHWGPBEYNCPYEAQWSLVKJLBHQANJFWWZLAQNLOXNUGKUDTWJPSLYNRUZGMSFYLJYNDJZYVRNTAQWCYEXDZSZFVWZOHZVROALUFHPVHHQTPWLJVMDWCBKKRNYOXAWCYOHNTZLKAXQMCNKJTMLBZFLLELANJLOQGCYFERACBOBKKWMTVCHUGQMYRYIF

Answer 2

崩溃，死循环