全局唯一标识符 (GUID)_综合

Javascript生成GUID

算法一：3b96b619-0a23-4ca1-80d4-8d4838173431

function uuid() { var s = []; var hexDigits = "0123456789abcdef"; for (var i = 0; i < 36; i ) { s[i] = hexDigits.substr(Math.floor(Math.random() * 0x10), 1); } s[14] = "4"; s[19] = hexDigits.substr((s[19] & 0x3) | 0x8, 1); s[8] = s[13] = s[18] = s[23] = "-"; var uuid = s.join(""); return uuid; }

算法二：1704354b-6274-4256-a2e1-b2710672e57c

function guid() { return 'xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx'.replace(/[xy]/g, function (c) { var r = Math.random() * 16 | 0, v = c == 'x' ? r : (r & 0x3 | 0x8); return v.toString(16); }); }

算法三：17bd3f96-513b-c4e4-1b37-936b2031d00c

function guid() { function S4() { return (((1 Math.random()) * 0x10000) | 0).toString(16).substring(1); } return (S4() S4() "-" S4() "-" S4() "-" S4() "-" S4() S4() S4()); }

算法四：
二进制：guid(16,2);1111010101100011
十进制：guid(16,10);7459326145909010
十六进制：guid(16,16);42DAD4B14F6615CF

function guid(len, radix) { var chars = '0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz'.split(''); var uuid = [], i; radix = radix || chars.length; if (len) { for (i = 0; i < len; i ) uuid[i] = chars[0 | Math.random() * radix]; } else { var r; uuid[8] = uuid[13] = uuid[18] = uuid[23] = '-'; uuid[14] = '4'; for (i = 0; i < 36; i ) { if (!uuid[i]) { r = 0 | Math.random() * 16; uuid[i] = chars[(i == 19) ? (r & 0x3) | 0x8 : r]; } } } return uuid.join(''); }

C#生成GUID的四种格式

格式一：9af7f46a-ea52-4aa3-b8c3-9fd484c2af12

var uuid = Guid.NewGuid().ToString();

格式二：e0a953c3ee6040eaa9fae2b667060e09

var uuidN = Guid.NewGuid().ToString("N");

格式三：9af7f46a-ea52-4aa3-b8c3-9fd484c2af12

var uuidD = Guid.NewGuid().ToString("D");

格式四：{734fd453-a4f8-4c5d-9c98-3fe2d7079760}

var uuidB = Guid.NewGuid().ToString("B");

格式五：(ade24d16-db0f-40af-8794-1e08e2040df3)

var uuidP = Guid.NewGuid().ToString("P");

格式六：{0x3fa412e3,0x8356,0x428f,{0xaa,0x34,0xb7,0x40,0xda,0xaf,0x45,0x6f}}

var uuidX = Guid.NewGuid().ToString("X");

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