4月17号
//1.编码
String str = "ai你哟";
byte[] bytes1 = str.getBytes();
System.out.println(Arrays.toString(bytes1));
byte[] bytes2 = str.getBytes(charsetName: "GBK");
System.out.println(Arrays.toString(bytes2));//2.解码
String str2 = new String(bytes1);
System.out.println(str2);
String str3 = new String(bytes1, charsetName:"GBK");
System.out.println(str3):
