[java]取当前平台默认字符集，取字符串长度

public class TimestampLength { public static void main(String[] args) { System.out.println(java.nio.charset.Charset.defaultCharset().toString()); System.out.println("学java".getBytes().length); System.out.println("2018-11-27 02:24:00.000000000".getBytes().length); }}

windows-31j629