//和卡建立连接           mc.connect({             success: function(res) {               console.log("连接卡成功： " + JSON.stringify(res))               //验证密码A指令               var keyaBs = [0x60, 0x04, 0xAE, 0x38, 0x40, 0x39,  0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF];               //把字节数组转成ArrayBuffer               var keyaArray = new Uint8Array(keyaBs.map(function (bs) {                 return bs;               }));               var keyaBuffer = keyaArray.buffer;               //验证密码A               mc.transceive({                 data:keyaBuffer,                 success:function(res){                   console.error("验证密码A" + "成功" + res.errMsg);                   var arr = [0x30, 1]                   var arrayBuffer = new Int8Array(arr).buffer                   var u8 = new Uint8Array(arrayBuffer)                   for(var i = 0; i < u8.length; i ++) {                     console.log(u8[i])                   }                   //发送指令                   mc.transceive({                     data: arrayBuffer,                     success: function(res) {                       console.log("transceive返回: " + JSON.stringify(res))                     },                     fail: function(e) {                       console.log("transceive异常: " + JSON.stringify(e))                     }                   });                 },                 fail:function(res){                   console.error("验证密码A" + "失败" + res.errMsg);                 },                 complete:function(res){                   console.error("验证密码A" + "状态" + res.errMsg);                 }               });             },             fail: function(e) {               console.log("和卡连接异常: " + JSON.stringify(e))             }           }) 结果：transceive返回: {"errMsg":"transceive:ok","data":{}}

MifareClassic.transceive(Object object)发送数据 对于MifareClassic的分块读写 指令 0x30 + 块号 可以用于读取某个块的数据指令 0xA0 + 块号 + 待写入数据 可以用于往某个块写入数据没有填写扇区密码的参数