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export function crc32(data) {
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const table = [0x00000000, 0x77073096, 0xee0e612c, 0x990951ba, 0x076dc419,
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0x706af48f, 0xe963a535, 0x9e6495a3, 0x0edb8832, 0x79dcb8a4,
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0xe0d5e91e, 0x97d2d988, 0x09b64c2b, 0x7eb17cbd, 0xe7b82d07,
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0x90bf1d91, 0x1db71064, 0x6ab020f2, 0xf3b97148, 0x84be41de,
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0x1adad47d, 0x6ddde4eb, 0xf4d4b551, 0x83d385c7, 0x136c9856,
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0x646ba8c0, 0xfd62f97a, 0x8a65c9ec, 0x14015c4f, 0x63066cd9,
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0xfa0f3d63, 0x8d080df5, 0x3b6e20c8, 0x4c69105e, 0xd56041e4,
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0xa2677172, 0x3c03e4d1, 0x4b04d447, 0xd20d85fd, 0xa50ab56b,
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0x35b5a8fa, 0x42b2986c, 0xdbbbc9d6, 0xacbcf940, 0x32d86ce3,
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0x45df5c75, 0xdcd60dcf, 0xabd13d59, 0x26d930ac, 0x51de003a,
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0xc8d75180, 0xbfd06116, 0x21b4f4b5, 0x56b3c423, 0xcfba9599,
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0xb8bda50f, 0x2802b89e, 0x5f058808, 0xc60cd9b2, 0xb10be924,
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0x2f6f7c87, 0x58684c11, 0xc1611dab, 0xb6662d3d, 0x76dc4190,
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0x01db7106, 0x98d220bc, 0xefd5102a, 0x71b18589, 0x06b6b51f,
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0x9fbfe4a5, 0xe8b8d433, 0x7807c9a2, 0x0f00f934, 0x9609a88e,
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0xe10e9818, 0x7f6a0dbb, 0x086d3d2d, 0x91646c97, 0xe6635c01,
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0x6b6b51f4, 0x1c6c6162, 0x856530d8, 0xf262004e, 0x6c0695ed,
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0x1b01a57b, 0x8208f4c1, 0xf50fc457, 0x65b0d9c6, 0x12b7e950,
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0x8bbeb8ea, 0xfcb9887c, 0x62dd1ddf, 0x15da2d49, 0x8cd37cf3,
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0xfbd44c65, 0x4db26158, 0x3ab551ce, 0xa3bc0074, 0xd4bb30e2,
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0x4adfa541, 0x3dd895d7, 0xa4d1c46d, 0xd3d6f4fb, 0x4369e96a,
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0x346ed9fc, 0xad678846, 0xda60b8d0, 0x44042d73, 0x33031de5,
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0xaa0a4c5f, 0xdd0d7cc9, 0x5005713c, 0x270241aa, 0xbe0b1010,
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0xc90c2086, 0x5768b525, 0x206f85b3, 0xb966d409, 0xce61e49f,
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0x5edef90e, 0x29d9c998, 0xb0d09822, 0xc7d7a8b4, 0x59b33d17,
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0x2eb40d81, 0xb7bd5c3b, 0xc0ba6cad, 0xedb88320, 0x9abfb3b6,
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0x03b6e20c, 0x74b1d29a, 0xead54739, 0x9dd277af, 0x04db2615,
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0x73dc1683, 0xe3630b12, 0x94643b84, 0x0d6d6a3e, 0x7a6a5aa8,
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0xe40ecf0b, 0x9309ff9d, 0x0a00ae27, 0x7d079eb1, 0xf00f9344,
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0x8708a3d2, 0x1e01f268, 0x6906c2fe, 0xf762575d, 0x806567cb,
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0x196c3671, 0x6e6b06e7, 0xfed41b76, 0x89d32be0, 0x10da7a5a,
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0x67dd4acc, 0xf9b9df6f, 0x8ebeeff9, 0x17b7be43, 0x60b08ed5,
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0xd6d6a3e8, 0xa1d1937e, 0x38d8c2c4, 0x4fdff252, 0xd1bb67f1,
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0xa6bc5767, 0x3fb506dd, 0x48b2364b, 0xd80d2bda, 0xaf0a1b4c,
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0x36034af6, 0x41047a60, 0xdf60efc3, 0xa867df55, 0x316e8eef,
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0x4669be79, 0xcb61b38c, 0xbc66831a, 0x256fd2a0, 0x5268e236,
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0xcc0c7795, 0xbb0b4703, 0x220216b9, 0x5505262f, 0xc5ba3bbe,
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0xb2bd0b28, 0x2bb45a92, 0x5cb36a04, 0xc2d7ffa7, 0xb5d0cf31,
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0x2cd99e8b, 0x5bdeae1d, 0x9b64c2b0, 0xec63f226, 0x756aa39c,
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0x026d930a, 0x9c0906a9, 0xeb0e363f, 0x72076785, 0x05005713,
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0x95bf4a82, 0xe2b87a14, 0x7bb12bae, 0x0cb61b38, 0x92d28e9b,
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0xe5d5be0d, 0x7cdcefb7, 0x0bdbdf21, 0x86d3d2d4, 0xf1d4e242,
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0x68ddb3f8, 0x1fda836e, 0x81be16cd, 0xf6b9265b, 0x6fb077e1,
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0x18b74777, 0x88085ae6, 0xff0f6a70, 0x66063bca, 0x11010b5c,
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0x8f659eff, 0xf862ae69, 0x616bffd3, 0x166ccf45, 0xa00ae278,
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0xd70dd2ee, 0x4e048354, 0x3903b3c2, 0xa7672661, 0xd06016f7,
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0x4969474d, 0x3e6e77db, 0xaed16a4a, 0xd9d65adc, 0x40df0b66,
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0x37d83bf0, 0xa9bcae53, 0xdebb9ec5, 0x47b2cf7f, 0x30b5ffe9,
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0xbdbdf21c, 0xcabac28a, 0x53b39330, 0x24b4a3a6, 0xbad03605,
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0xcdd70693, 0x54de5729, 0x23d967bf, 0xb3667a2e, 0xc4614ab8,
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0x5d681b02, 0x2a6f2b94, 0xb40bbe37, 0xc30c8ea1, 0x5a05df1b,
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0x2d02ef8d];
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let crc = 0x00000000;
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for (let i = 0; i < data.length; i++) {
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crc = table[(crc ^ data[i]) & 0xFF] ^ (crc >>> 8);
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}
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return crc >>> 0;
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}
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export function wordArrayToByteArray(wordArray,length) {
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if(wordArray.hasOwnProperty("sigBytes") && wordArray.hasOwnProperty("words")){
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length = wordArray.sigBytes;
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wordArray = wordArray.words;
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}
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let result = [];
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let bytes;
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let i = 0;
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while(length > 0){
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bytes = wordToByteArray(wordArray[i],Math.min(4,length));
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length -= bytes.length;
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result.push(bytes);
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i++;
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}
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return [].concat.apply([],result);
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}
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export function wordToByteArray(word, length){
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var ba:[] = [],
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xFF = 0xFF;
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if (length > 0)
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ba.push(word >>> 24);
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if (length > 1)
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ba.push((word >>> 16) & xFF);
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if (length > 2)
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ba.push((word >>> 8) & xFF);
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if (length > 3)
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ba.push(word & xFF);
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return ba;
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}
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export function arrayToHexString(arr) {
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let result = '';
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for (let i = 0; i < arr.length; i++) {
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const hexValue = Number(arr[i]).toString(16); // 将每个元素转换为对应的十六进制值
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if (hexValue.length === 1) {
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result += '0'; // 若只有一位则在前面补零
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}
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result += hexValue;
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}
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return result;
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}
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export function intToHexString(i) {
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let result = ''
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const hexValue = Number(i).toString(16); // 将每个元素转换为对应的十六进制值
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if (hexValue.length === 1) {
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result += '0'; // 若只有一位则在前面补零
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}
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result += hexValue
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return result
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}
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export function hexStringToArray(hexString) {
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var byteArray = new Uint8Array(hexString.length / 2);
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for (var i = 0; i < hexString.length; i += 2) {
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byteArray[i / 2] = parseInt(hexString.substr(i, 2), 16);
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}
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return byteArray;
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}
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export function sleep(delay) {
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var start = (new Date()).getTime();
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while ((new Date()).getTime() - start < delay) {
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continue;
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}
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}
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// ArrayBuffer转16进度字符串示例
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export function ab2hex(buffer) {
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if (!buffer || buffer.length <= 0) {
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return ''
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}
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var hexArr = Array.prototype.map.call(
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new Uint8Array(buffer),
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function (bit) {
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return ('00' + bit.toString(16)).slice(-2)
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}
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)
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return hexArr.join('');
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}
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export function madAddressToLocalName(macStr){
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//去除中间的冒号
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var reg = /(\:)(\w)/g
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var res = macStr.replace(reg, function(match, underline, letter) {
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return letter
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});
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var macStrResult:string = res
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let returnStr = 'XPED-' + macStrResult.toUpperCase()
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return returnStr
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}
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export function createKey1(macStr){
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var reg = /(\:)(\w)/g
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var res = macStr.replace(reg, function(match, underline, letter) {
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return letter
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});
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let tripMacStr =res.substr(2,8)
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console.log('截取',tripMacStr)
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var arrrayHelp = []
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for(var i = 0; i<tripMacStr.length; i++){
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let hex = parseInt(tripMacStr[i].toString(16), 16)
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arrrayHelp[i] = (hex + 1 >= 16) ? 0 : hex+1
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}
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var arryKey1 = []
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for(var i=0 ; i<arrrayHelp.length/2; i++){
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arryKey1[i] = arrrayHelp[i*2]*16 + arrrayHelp[i*2+1];
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//
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}
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console.log('md5前',arryKey1)
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let uint8Array = Uint8Array.from(arryKey1);
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let buffer = uint8Array.buffer;
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var str = ab2hex(buffer)
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console.log('Key的HexStr',str)
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return str;
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}
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export function createRandomData(){
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var arrayValue = []
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for(var i=0;i<4;i++){
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arrayValue[i] = parseInt(generateRandomHex(2).toString(16),16)
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}
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console.log(arrayValue);
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return arrayValue;
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}
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export function generateRandomHex(length) {
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var result = '';
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var characters = '0123456789abcdef';
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for (var i = 0; i < length; i++) {
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result += characters.charAt(Math.floor(Math.random() * characters.length));
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}
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return result;
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}
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export function generateRandomInt() {
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var randomInt = Math.floor(Math.random() * (Math.pow(2, 32) - 1));
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return randomInt;
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}
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export function hexStringFromInt(value, isLittleEndian){
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var b = []
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if (isLittleEndian) {
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b.push(value & 0xFF)
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b.push((value >>> 8) & 0xFF)
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b.push((value >>> 16) & 0xFF)
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b.push((value >>> 24) & 0xFF)
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} else {
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b.push((value >>> 24) & 0xFF)
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b.push((value >>> 16) & 0xFF)
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b.push((value >>> 8) & 0xFF)
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b.push(value & 0xFF)
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}
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return arrayToHexString(b)
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}
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export function base64ToHex(str) {
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const binaryString = myAtob(str); // Base64解码得到二进制数据
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let result = '';
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for (let i = 0; i < binaryString.length; ++i) {
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const charCode = binaryString.charCodeAt(i).toString(16); // 获取每个字节的ASCII值并转换成十六进制表示
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if (charCode.length === 2) {
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result += charCode; // 若结果长度为两位则直接添加到最后的结果字符串中
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} else {
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result += '0' + charCode; // 否则补零再添加到结果字符串中
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}
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}
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return result;
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}
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export function myAtob(encoded) {
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var keyStr = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=";
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var output = "";
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var chr1, chr2, chr3;
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var enc1, enc2, enc3, enc4;
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var i = 0;
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encoded = encoded.replace(/[^A-Za-z0-9+/=]/g, "");
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while (i < encoded.length) {
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enc1 = keyStr.indexOf(encoded.charAt(i++));
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enc2 = keyStr.indexOf(encoded.charAt(i++));
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enc3 = keyStr.indexOf(encoded.charAt(i++));
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enc4 = keyStr.indexOf(encoded.charAt(i++));
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chr1 = (enc1 << 2) | (enc2 >> 4);
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chr2 = ((enc2 & 15) << 4) | (enc3 >> 2);
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chr3 = ((enc3 & 3) << 6) | enc4;
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output = output + String.fromCharCode(chr1);
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if (enc3 != 64) {
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output = output + String.fromCharCode(chr2);
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}
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if (enc4 != 64) {
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output = output + String.fromCharCode(chr3);
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}
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}
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return output;
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}
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export function timestampToTime(timestamp) {
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if(timestamp == 0){
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return '永久'
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}
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var date = new Date(timestamp);//时间戳为10位需*1000，时间戳为13位的话不需乘1000
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var Y = date.getFullYear() + '年';
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var M = (date.getMonth()+1 < 10 ? '0'+(date.getMonth()+1):date.getMonth()+1) + '月';
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var D = (date.getDate()< 10 ? '0'+date.getDate():date.getDate())+ '日 ';
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var h = (date.getHours() < 10 ? '0'+date.getHours():date.getHours())+ ':';
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var m = (date.getMinutes() < 10 ? '0'+date.getMinutes():date.getMinutes()) ;
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return Y+M+D+h+m;
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}
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export function groupArray(array, subGroupLength) {
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let index = 0;
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let newArray = [];
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while(index < array.length) {
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newArray.push(array.slice(index, index += subGroupLength));
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}
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return newArray;
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}
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