不同的编码格式占字节数是不同的,utf-8编码下一个中文所占字节也是不确定的,可能是2个、3个、4个字节;
1 @test 2 public void test1() throws unsupportedencodingexception { 3 string a = "名"; 4 system.out.println("utf-8编码长度:"+a.getbytes("utf-8").length); 5 system.out.println("gbk编码长度:"+a.getbytes("gbk").length); 6 system.out.println("gb2312编码长度:"+a.getbytes("gb2312").length); 7 system.out.println("=========================================="); 8 9 string c = "0x20001"; 10 system.out.println("utf-8编码长度:"+c.getbytes("utf-8").length); 11 system.out.println("gbk编码长度:"+c.getbytes("gbk").length); 12 system.out.println("gb2312编码长度:"+c.getbytes("gb2312").length); 13 system.out.println("=========================================="); 14 15 char[] arr = character.tochars(0x20001); 16 string s = new string(arr); 17 system.out.println("char array length:" + arr.length); 18 system.out.println("content:| " + s + " |"); 19 system.out.println("string length:" + s.length()); 20 system.out.println("utf-8编码长度:"+s.getbytes("utf-8").length); 21 system.out.println("gbk编码长度:"+s.getbytes("gbk").length); 22 system.out.println("gb2312编码长度:"+s.getbytes("gb2312").length); 23 system.out.println("=========================================="); 24 }
1 utf-8编码长度:3 2 gbk编码长度:2 3 gb2312编码长度:2 4 ========================================== 5 utf-8编码长度:4 6 gbk编码长度:1 7 gb2312编码长度:1 8 ========================================== 9 char array length:2 10 content:|
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