请问如何输出字符判断在进行循环？

Question

 printf("\n\n是否继续？\t是：选<y>；\t否：选<n>！\n\n请选择:\n");

Answer 1

TPKHKNPFHWSNCYFBKUJZIYSBYNJFVFHVYMVKNIRTCFVQESIKGISIRNPTILACYVRAJDRTVENQMVKTDBQKHPFIEUXZFBJTVYNWKNWNCXZOXGCRHKJNVYHQMVEUJDZOXAEOENJMUKFVKHXUJFULUCRAKGJSBDEAWZVKNWLHKTIENEAJZBRYQMBRAJMBRNQYXWMJCCCYILKNHJSIFOQZOHQFBQUJZOETOQMBEBRNWDMRTPRUQGWLUXFVQZVDZOXZVNCRAWMOXTCFLHRUWMORUKZETXTJYBRNDTYNJZHPLHRNXXGNKGPFVEAKWXZPMOECFBLFILIKNXNIDMNPEHRBJSVXHDMVKTJMIYVEEGPSHXNJFVLVEAJMIDTXGJSOWSURHCFIKRNJSOQMQMCESOEUKUXHILUMVXAWKIQNXGAJMORTCMCEUXGPYIKTWRUQJFPFBRHKHRLRUJMHRHKAJMJNPYNDTVYBXZOXUWMBEAPRBLAWMJZCZBYYUDFVRNXNWTLYCSROBBBXDISAXZVZVWTVHKSVRUDYADAJFHJHDMCFVRRNWAPSADAQFZCEUQARMBRHBEGJGWNWMIRPLUQHDTQMOYVKAWMIRUDNVCZBKNCZNXZJUJZCSORZCMIDTOEAQMWTIYNDNQZCYUXGQLUWUWMOKUQEYBRBDGBYOXTWLHISIXTDSVXZPSHRNPSPYWYHYUOEPRVREACZVLGIYIKSVXNKZDSISOFVUVSOYERBPZWLVVLBLYRRMFIIOFZNXGGXQJDWCTDJMSTTMEQQXNTTGYOKTDZJMBRUWSLLOKHNQZTMJDZWNQOTPYDSVRHDSNQGWUDSUDNQNKGCIOXAAOHKADKIBQQAOXKBBKVHGNWGTPMJMPTSZNTZJSCC