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import java.io.*; public class StringTest { public static void main(String[] args) { String aString = "这是一个测试串,This is a test string."; String anotherString = null; try { anotherString = new String(aString.getBytes("GBK"), "ISO8859_1"); } catch (UnsupportedEncodingException ex) { } System.out.println(aString.length() + "," + anotherString.length()); } }