<script type="text/javascript"> function hash(str) { str += ""; var arr = new Array, len = str.length; var arg = Math.SQRT2.toFixed(9) - 0; forEach(function (x) { arr[x] = 0; }); for (var i = 0; i < str.length; i++) calc(str.charCodeAt(i)); forEach(function (x) { arr[x] = arr[x].toString(16); if (arr[x].length < 2) arr[x] = "0" + arr[x]; }); arr.reverse(); return arr.join(""); function calc(nmb) { var c = nmb & 255, next = nmb >> 8; forEach(function (x) { var h = (x ? arr[x - 1] : 0) + arr[x] + x + len + c; h += (h / arg).toFixed(9).slice(-3) - 0; arr[x] = h & 255; }); if (next > 0) calc(next); } function forEach(func) { for (var i = 0; i < 16; i++) func(i); } } // 测试结果 console.log(hash("\x00")); //"f66c78ed57fe3b83eb7bfc5fcf29060e" console.log(hash("\x01")); //"5020f05de58d937d38a33b86f6502d35" console.log(hash("\x02")); //"4493772230d4090cb79e78f34680455b" console.log(hash("\x00\x00")); //"49cf24f9948663e02a919e18d1c40707" alert(hash("a")); </script> [您可以先修改代码再运行]