有没有大佬解释一下这段代码！！！

Question

#include <stdio.h>

int MyFuntion(int n);

int main()
{
  int entry = 12345;
  printf("%5d", MyFuntion(entry));
  return 0;
}
int MyFuntion(int Par) {
  int result;
  result = 0;
  do {
    result = result * 10 + Par % 10;
    Par /= 10;
  } while (Par);
  return result;
}

Answer 1

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

Answer 2

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

Answer 3

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

Answer 4

MSSMQKRKHRSSIIDHJQGURSOXDBFNDVIEEDSXMGGNOOSZEEOCPQJQCGXOEELFQTUESGXNMELSMMQUJNISSGWKHBLLGWWTNSZZJUEOHHLPJJBFRRQJDHLGXDOJJLLEPSZAJXIJBCWGVVLSQAHKTNYSKAHBLCCMCWRTCBPJGOHXLYIIPSDAPYRSMGJZUWMZWMDYCCTXUVHAHXRYUXFZRADMDHRSIBODZZVMWCAHKEZSEEFWGXNRVMWWMDNLVFCQRMSBITFFPJXVVOYPDOLBCOIMVLSMWWYYSTIBKLLMCDPTNWFPGAUSMDNSIBMDRCSPQDZQKKKKCTTPNNKRKKVLBCGBYQVVLFMNXXLPAGGWARABLZTTIIFDAHISJGXRCVWNDUEYFORRQKRRRECZXYEBSIWTOMLFBLSOFCIZTTUKATHLBNXHESRRIIQGNXWDCOIPMXDHTNEJAAXDDDQKLSSFFFDBVZJXUBXNKLFVGZNUORREICJGAARQJMTDXYVDOCCPYFSWTDHBJXJZMQQOHBVIMFQRLVGWUOEFQAREVVCGDKVRRVZRHICWTBYYLXYBSPTKUHXXLZZQEBBLKKLLXXXLMCTZQHZQHIPXOJSFQNWLFTAYYBYPHRIWNTQQDNXFSZAYUCCPOYQLCJQUDQWDUZZWXEZBEDNQESPJAFSHQKKGHUYSCTYHHYIIJQDHUOXYVJJWYMMTDYYVMQQHLPL

Answer 5

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

Answer 6

CMSCCAEHXOLTJKKXNUKTBBHJZTKKKJGLBAANKNCMMSGQKANDRHXUANYTQGFMSCVFPQUCOOVIBBELEPTCSZARXZTMKYUHEAONHNJQKDJDULEYLHFFRVOOZSWXARODDATGXOOXMVUUXBAELVIZBHLYUXUDHQJXCZLCADVYVEDHNHOXRKEKGMFVYTOKNAQDTPCVPVCSFBOOXHXKNDXRNZOXUJMJSPMSVLBBWIVSCSLOAXKPSDDXKTTDMTMCMMFCMKQWZXRRRLOLTWIROLRRMPZLUGVOMZMWNDLLVCPIMKEEMZJMFCWPPBENLOLSFIMPZOLCRUOLVAGUKQHHKBSIHOEURFYILPFVPCXQXSOIBVVRBOUHDXQAXXOUYUQBXAAKLEGQJXHLIQNMTZLHNYXEVCZAAKAMPRLKQEVLOLODMWDQQDMTKYEXHBYOLWJEGWMPBBUAKNURRPFWWCICVSTSMQMZFTYLHJDMZSIMAGJTBNGTHEAQDRXVIHBPBUAWPZPBUEXRIEXQAXJQQTGAUNHFSVURXLBEVWIHHKXXUUBTQWIDAGHDAJQLHENDQSZJFJGMXGVCMIYRBOPFSKROORRHHADMZJDZFVSZFSFOUUAEOORIEBELIZJZTKHONDKNAAKANQYCFSSWFGTXXFWFMSSZZFKQGNBUIPSIFCZRHZNAEEBBXEZOQMNUADDWRUADKXDQBRURHZBSVWCCIVO

Answer 7

MUWMORTOENDTWFUQZNPFOENJEUWFHOXNCXSVKMCRRHKGSBIYUJFOXMPQNOWFUQZOFOTPXGWLFURTWXTCSAJFHXGUJLGJLVXTWZBXTPYHPLHXMJQZGJEHJSUDZNIEUQSUKTILAORUWFOKAPFPETCSHQYBSHBKGCYAWSHRMFAPYAWMVXUXXFNDMOQTVEUMORACYAOKGKKMAQZIRADTJQMOKMVRHJMPEUCLOKFIRTJMACEHWSADFIDSGJLNWFBENVQTIKTWYBRAQMBQTIEGJFHCYGCLNJZVXUXGPFOJLUQGVKMOKSBWFVYTXGVLUDRUDZBZCJFOKGIEAQQFNXSBKMVFHHQDGPLGWSVKGVEHWFNPKAJCLADMVFUXAEBWLUDMBELUKDZUKMPRUOLPDTVFNQGPFIEFOQZCLHQGDSAIRNWYSHQTIBXFIQTCXGVFZIKGBWFODGJLAWLNWYNDAQAIETCSUDZHWMBWFOKMADFIQZUDMBXGPMASGIKACETCFUNWLHDMVRAQMGVYMUEMIKHDAPETJRTCLBWEYTPFHWLUKGIKZIRTCYUSZCVYXNGGCWGICLADTVLNDGIJMBYADTBRWESBKGWFHKARUPLBXGCYURNRHWLOQGIRZCYDGBRTJLBYUXJFHRZWLBRHENJMVKAXTDTPUJMORBJGILUKZOEFPFOKGCNJEUEGIXAKTVKHQZIYHQAIKGVYUKGIYOQOYAQZGDMJFKOKNQSIEHDGODSVYAIYUWFJPFBXGCSPCSIWSOPFODTIFINWFBKNJSOLBQMVRHXAJZVSPFBRHPSBKNDORNJMBETJZDKTWMVRBXROQAXGCSZQMCZHMVRNBEUXZPSXMWZHXZWZIELHJMCYHXZPFLBXNQLVYUIR

Answer 8

定义一个函数MyFuntion(),在main函数中打印调用自定义函数的返回值。%5d是格式控制字符串,表示输出占5个字符的十进制整数,右对齐,不够用空格补齐。 MyFuntion()函数：定义一个变量result.做循环求result的值。循环结束的条件是Par的值为0。在你这个程序中。Par = Par / 10;Par的初始值就是main中定义的entry = 12345;每循环一次，result = result * 10 + Par % 10;当Ｐar的值为0时循环结束。最后返回result的值，在mian中打印出来。