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比特幣C++代碼實(shí)現(xiàn)_區(qū)塊鏈技術(shù)_區(qū)塊鏈_腳本之家
string sPrevHash;//前一個區(qū)塊的哈希值 Block(uint32_t nIndexIn, const string& sDataIn);//構(gòu)造函數(shù) string GetHash();//返回哈希值 void MineBlock(uint32_t nDifficulty);//挖礦,其參數(shù)nDifficulty表示指定的難度值 void NoMineBlock();//不挖礦直接添加區(qū)塊 uint32_t _nIndex;//區(qū)塊索引值,第幾...
www.dbjr.com.cn/blockchain/7705...html 2025-6-9
以太坊Devcon大會精選!十大關(guān)鍵技術(shù)全解析,將徹底改變Web3?_區(qū)塊鏈...
function handler_transferPoints(uint256 fromIndex, uint256 toIndex, uint24 points) external { fromIndex = bound(fromIndex, 0, recipients.length - 1); toIndex = bound(toIndex, 0, recipients.length - 1); address from = recipients[fromIndex ]; address to = recipients[toIndex]; points = uint...
www.dbjr.com.cn/blockchain/9633...html 2025-6-6
HTML5引入的新數(shù)組TypedArray介紹_html5_網(wǎng)頁制作_腳本之家
var array = new Uint8Array(10); 或者: 復(fù)制代碼 代碼如下: var array = new Uint8Array([1, 2, 3, 4, 5, 6, 7, 8, 9, 10]); 數(shù)據(jù)操作 TypedArray提供了setter、getter、set和subarray四個方法進(jìn)行數(shù)據(jù)操作。 方法gettertypeget(unsigned long index) 返回指定索引的元素。 setter void set(unsigne...
www.dbjr.com.cn/html5/688...html 2025-6-9
C#中BitConverter.ToUInt16()和BitConverter.ToString()的簡單使...
publicstaticvoidBAToUInt16(byte[] bytes,intindex) { //BitConverter用于基礎(chǔ)數(shù)據(jù)跟字節(jié)數(shù)組相互轉(zhuǎn)換 //BitConverter.ToUInt16()方法將字節(jié)數(shù)組指定位置起的兩個字節(jié)轉(zhuǎn)換為無符號整數(shù) ushortvalue = BitConverter.ToUInt16(bytes, index); //BitConverter.ToString()字節(jié)數(shù)組轉(zhuǎn)換為十六進(jìn)制的字符串形式 ...
www.dbjr.com.cn/article/1792...htm 2025-5-21
Vue3利用組合式函數(shù)和Shared Worker實(shí)現(xiàn)后臺分片上傳_vue.js_腳本之家
const buffer = task.file.slice(index * pieceSize, end); hash.update(new Uint8Array(await buffer.arrayBuffer())); const form = new FormData(); form.append('file', buffer); let isTimeout = false; try { const timer = setTimeout(() => { isTimeout = true; abort.abort(); }, 800...
www.dbjr.com.cn/javascript/302915m...htm 2025-6-6
C++ MD5的源碼實(shí)例詳解_C 語言_腳本之家
uint32 i, index, partLen; _finished = false; /* Compute number of bytes mod 64 */ index = (uint32)((_count[0] >> 3) & 0x3f); /* update number of bits */ if((_count[0] += ((uint32)length << 3)) < ((uint32)length << 3)) _count[1]++; _count[1] += ...
www.dbjr.com.cn/article/1031...htm 2025-5-23
mysql實(shí)現(xiàn)本地keyvalue數(shù)據(jù)庫緩存示例_Mysql_腳本之家
uint32_t nodeId = GetIdByKey(key); if(nodeId == m_InvalidId) return false; uint32_t index = key.HashCode() % m_HeadAddr->m_TableLen; return RecycleNode(index, nodeId); } bool Set(K &key, V &value) { AutoLock autoLock(m_MutexLock); ...
www.dbjr.com.cn/article/443...htm 2025-5-26
Java C++實(shí)現(xiàn)相同MD5加密算法的方式_java_腳本之家
context->count[1] += ((UINT4)inputLen >> 29); partLen = 64 - index; if (inputLen >= partLen) { memcpy((POINTER)&context->buffer[index], (POINTER)input, partLen); MD5Transform(context->state, context->buffer); for (i = partLen; i + 63 < inputLen; i += 64) MD5...
www.dbjr.com.cn/article/2220...htm 2025-5-15