js crc16检验

?

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23

crc16(data) {     let crcValue = 0xFFFF;     for (let i = 0; i < data.length; i++) {         crcValue ^= data[i] & 0xFFFF         for (let j = 0; j < 8; j++) {             if (crcValue & 0x0001) {                 crcValue >>= 1                 crcValue ^= 0xA001             } else {                 crcValue >>= 1             }         }     }       crcValue = crcValue.toString(16)     let crcArr = new Array(2)     crcArr[0] = crcValue.substring(2, 4)     crcArr[1] = crcValue.substring(0, 2)     return crcArr }   var res=crc16(Buffer.from("010101", "hex")); console.log(res)

 

?

1 2 3 4

//要引入buffer npm install buffer   import {Buffer  } from 'buffer'