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| public final class M2NUtil { | |
| private static char[] array = "0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ" | |
| .toCharArray(); | |
| public static String m2n(int number, int n) { | |
| // String 是不可变的，每次改变都要新建一个Strng，很浪费时间。 | |
| // StringBuilder是‘可变的String’ , | |
| StringBuilder result = new StringBuilder(); | |
| // 模拟计算进制的过程 |