Harmony OS支持把携带汉字的字符转转化为Byte数组吗？

Question

打印及打印是，需要将打印数据转化为ArrayBuffer，但是打印内容携带汉字的话会出现打印汉字乱码
问题场景描述：打印：

let encoded = stringToUint8Array(printDataTest); 
socket.sppWrite(clientNumber, encoded); 
// 打印数据String转ArrayBuffer 
export function stringToUint8Array(str: string): ArrayBuffer { 
  // let textEncoder: util.TextEncoder = new util.TextEncoder('gbk'); 
  let textEncoder: util.TextEncoder = new util.TextEncoder(); 
  let uint8Array = new Uint8Array(textEncoder.encodeInto(str).length); 
  textEncoder.encodeIntoUint8Array(str, uint8Array); 
  return uint8Array.buffer; 
}

TextEncoder默认是utf-8的，转化为ArrayBuffer后打印汉字乱码，但使用’gbk’打印不出来内容，是不是不支持’gbk’呢？

Answer 1

// 字节流转成可理解的字符串 
function uint8ArrayToString(array:Uint8Array) { 
  // 将UTF-8编码转换成Unicode编码 
  let out: string = ""; 
  let index: number = 0; 
  let len: number = array.length; 
  while (index < len) { 
    let character = array[index++]; 
    switch(character >> 4) { 
      case 0: 
      case 1: 
      case 2: 
      case 3: 
      case 4: 
      case 5: 
      case 6: 
      case 7: 
        out += String.fromCharCode(character); 
        break; 
      case 12: 
      case 13: 
        out += String.fromCharCode(((character & 0x1F) << 6) | (array[index++] & 0x3F)); 
        break; 
      case 14: 
        out += String.fromCharCode(((character & 0x0F) << 12) | ((array[index++] & 0x3F) << 6) | ((array[index++] & 0x3F) << 0)); 
        break; 
      default: 
        break; 
    } 
  } 
  return out; 
} 

支持gbk,参考：https://developer.huawei.com/consumer/cn/doc/harmonyos-refere...属性