26 位大小写字母加上 0~9 数字的五位组合有多少种？ - V2EX
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26 位大小写字母加上 0~9 数字的五位组合有多少种？

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  •   vbe Feb 5, 2022 1303 views
    This topic created in 1580 days ago, the information mentioned may be changed or developed.
    因网站归类不同内容需要，暂定为此编号方式，上限大概在哪里？
  • 大小写
  • 定为
  • 归类
  • 排序
    3 replies
    msg7086
        1
    msg7086  
       Feb 5, 2022
    62^5 。不过根据我们实际用下来的体验，这种做法对搜索引擎不友好，因为 URL 在搜索的时候不区分大小写，搜一个 ID 很可能搜到另一个东西。
    mizuBai
        2
    mizuBai  
       Feb 5, 2022 via iPhone
    可以写个回溯全排列出来
    after1990s
        3
    after1990s  
       Feb 5, 2022 via Android
    数学作业要自己做
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