java - 分解页面上的文本

Question

我有一个字符串

String str = "line1"+"\n" +
               "line2"+"\n" +
               "line3"+"\n" +
               "line4"+"\n" +
               "line5"+"\n" +
               "line6"+"\n" +
               "line7"+"\n" +
               "line8"+"\n" +
               "line9"+"\n" +
               "line10"+"\n" +
               "line11"+"\n" +
               "line12"+"\n" +
               "line13"+"\n" +
               "line14"+"\n" +
               "line15"+"\n" +
               "line16"+"\n" +
               "line17"+"\n";

我想从中得到一个字符串数组

String str1 =      "line1"+"\n" +
                   "line2"+"\n" +
                   "line3"+"\n" +
                   "line4"+"\n";

String str2 =      "line5"+"\n" +
                   "line6"+"\n" +
                   "line7"+"\n" +
                   "line8"+"\n";

String str3 =      "line9"+"\n" +
                   "line10"+"\n" +
                   "line11"+"\n" +
                   "line12"+"\n";

String str4 =      "line13"+"\n" +
                   "line14"+"\n" +
                   "line15"+"\n" +
                   "line16"+"\n";

String str5 =       "line17"+"\n";

如果我这样做

 String[] str1 = str.split("\n");

我得到一个字符串数组，其中只有一行，并且我需要它来进行一些操作我将拥有计划从中连续读取文本的文件，而不是字符串

Answer 1

要分割具有特定格式的字符串，您需要指定正则表达式所以在你的情况下，正则表达式将是 ("\r\n")

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