怎样按照最后一个字符分割字符串 - V2EX
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aoscici2000
V2EX    Java

怎样按照最后一个字符分割字符串

  •   
  •   aoscici2000 2019-10-17 12:26:31 +08:00 3756 次点击
    这是一个创建于 2187 天前的主题，其中的信息可能已经有所发展或是发生改变。

    例如 12-34-56-78-9

    分成两个"12-34-56-78" 和 "9"

  • 字符
  • 分割
  • 分成
  • 例如
    6 条回复    2019-10-19 11:36:21 +08:00
    Telegram
        1
    Telegram  
       2019-10-17 12:56:41 +08:00 via iPhone
    正则表达式
    vakara
        2
    vakara  
       2019-10-17 13:01:08 +08:00 via Android
    '-'.join(s.split('-')[:-1])
    lululau
        3
    lululau  
       2019-10-17 13:02:33 +08:00
    .split("-(?!.*-)")
    Raymon111111
        4
    Raymon111111  
       2019-10-17 13:06:42 +08:00
    找到最后一个 - 的 index

    然后用这个 index 去分
    ColoThor
        5
    ColoThor  
       2019-10-17 15:51:15 +08:00
    int index = str.lastIndexOf("-");
    str.substring(0, index);
    str.substring(index + 1);
    aoscici2000
        6
    aoscici2000  
    OP
       2019-10-19 11:36:21 +08:00
    @ColoThor 谢谢
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