javascript实现des解密加密全过程


Posted in Javascript onApril 03, 2014
//Paul Tero, July 2001 
//http://www.tero.co.uk/des/ 
// 
//Optimised for performance with large blocks by Michael Hayworth, November 2001 
//http://www.netdealing.com 
// 
//THIS SOFTWARE IS PROVIDED "AS IS" AND 
//ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 
//IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 
//ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 
//FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 
//DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 
//OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 
//HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 
//LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 
//OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 
//SUCH DAMAGE. //des 
//this takes the key, the message, and whether to encrypt or decrypt 
function des (key, message, encrypt, mode, iv, padding) { 
//declaring this locally speeds things up a bit 
var spfunction1 = new Array (0x1010400,0,0x10000,0x1010404,0x1010004,0x10404,0x4,0x10000,0x400,0x1010400,0x1010404,0x400,0x1000404,0x1010004,0x1000000,0x4,0x404,0x1000400,0x1000400,0x10400,0x10400,0x1010000,0x1010000,0x1000404,0x10004,0x1000004,0x1000004,0x10004,0,0x404,0x10404,0x1000000,0x10000,0x1010404,0x4,0x1010000,0x1010400,0x1000000,0x1000000,0x400,0x1010004,0x10000,0x10400,0x1000004,0x400,0x4,0x1000404,0x10404,0x1010404,0x10004,0x1010000,0x1000404,0x1000004,0x404,0x10404,0x1010400,0x404,0x1000400,0x1000400,0,0x10004,0x10400,0,0x1010004); 
var spfunction2 = new Array (-0x7fef7fe0,-0x7fff8000,0x8000,0x108020,0x100000,0x20,-0x7fefffe0,-0x7fff7fe0,-0x7fffffe0,-0x7fef7fe0,-0x7fef8000,-0x80000000,-0x7fff8000,0x100000,0x20,-0x7fefffe0,0x108000,0x100020,-0x7fff7fe0,0,-0x80000000,0x8000,0x108020,-0x7ff00000,0x100020,-0x7fffffe0,0,0x108000,0x8020,-0x7fef8000,-0x7ff00000,0x8020,0,0x108020,-0x7fefffe0,0x100000,-0x7fff7fe0,-0x7ff00000,-0x7fef8000,0x8000,-0x7ff00000,-0x7fff8000,0x20,-0x7fef7fe0,0x108020,0x20,0x8000,-0x80000000,0x8020,-0x7fef8000,0x100000,-0x7fffffe0,0x100020,-0x7fff7fe0,-0x7fffffe0,0x100020,0x108000,0,-0x7fff8000,0x8020,-0x80000000,-0x7fefffe0,-0x7fef7fe0,0x108000); 
var spfunction3 = new Array (0x208,0x8020200,0,0x8020008,0x8000200,0,0x20208,0x8000200,0x20008,0x8000008,0x8000008,0x20000,0x8020208,0x20008,0x8020000,0x208,0x8000000,0x8,0x8020200,0x200,0x20200,0x8020000,0x8020008,0x20208,0x8000208,0x20200,0x20000,0x8000208,0x8,0x8020208,0x200,0x8000000,0x8020200,0x8000000,0x20008,0x208,0x20000,0x8020200,0x8000200,0,0x200,0x20008,0x8020208,0x8000200,0x8000008,0x200,0,0x8020008,0x8000208,0x20000,0x8000000,0x8020208,0x8,0x20208,0x20200,0x8000008,0x8020000,0x8000208,0x208,0x8020000,0x20208,0x8,0x8020008,0x20200); 
var spfunction4 = new Array (0x802001,0x2081,0x2081,0x80,0x802080,0x800081,0x800001,0x2001,0,0x802000,0x802000,0x802081,0x81,0,0x800080,0x800001,0x1,0x2000,0x800000,0x802001,0x80,0x800000,0x2001,0x2080,0x800081,0x1,0x2080,0x800080,0x2000,0x802080,0x802081,0x81,0x800080,0x800001,0x802000,0x802081,0x81,0,0,0x802000,0x2080,0x800080,0x800081,0x1,0x802001,0x2081,0x2081,0x80,0x802081,0x81,0x1,0x2000,0x800001,0x2001,0x802080,0x800081,0x2001,0x2080,0x800000,0x802001,0x80,0x800000,0x2000,0x802080); 
var spfunction5 = new Array (0x100,0x2080100,0x2080000,0x42000100,0x80000,0x100,0x40000000,0x2080000,0x40080100,0x80000,0x2000100,0x40080100,0x42000100,0x42080000,0x80100,0x40000000,0x2000000,0x40080000,0x40080000,0,0x40000100,0x42080100,0x42080100,0x2000100,0x42080000,0x40000100,0,0x42000000,0x2080100,0x2000000,0x42000000,0x80100,0x80000,0x42000100,0x100,0x2000000,0x40000000,0x2080000,0x42000100,0x40080100,0x2000100,0x40000000,0x42080000,0x2080100,0x40080100,0x100,0x2000000,0x42080000,0x42080100,0x80100,0x42000000,0x42080100,0x2080000,0,0x40080000,0x42000000,0x80100,0x2000100,0x40000100,0x80000,0,0x40080000,0x2080100,0x40000100); 
var spfunction6 = new Array (0x20000010,0x20400000,0x4000,0x20404010,0x20400000,0x10,0x20404010,0x400000,0x20004000,0x404010,0x400000,0x20000010,0x400010,0x20004000,0x20000000,0x4010,0,0x400010,0x20004010,0x4000,0x404000,0x20004010,0x10,0x20400010,0x20400010,0,0x404010,0x20404000,0x4010,0x404000,0x20404000,0x20000000,0x20004000,0x10,0x20400010,0x404000,0x20404010,0x400000,0x4010,0x20000010,0x400000,0x20004000,0x20000000,0x4010,0x20000010,0x20404010,0x404000,0x20400000,0x404010,0x20404000,0,0x20400010,0x10,0x4000,0x20400000,0x404010,0x4000,0x400010,0x20004010,0,0x20404000,0x20000000,0x400010,0x20004010); 
var spfunction7 = new Array (0x200000,0x4200002,0x4000802,0,0x800,0x4000802,0x200802,0x4200800,0x4200802,0x200000,0,0x4000002,0x2,0x4000000,0x4200002,0x802,0x4000800,0x200802,0x200002,0x4000800,0x4000002,0x4200000,0x4200800,0x200002,0x4200000,0x800,0x802,0x4200802,0x200800,0x2,0x4000000,0x200800,0x4000000,0x200800,0x200000,0x4000802,0x4000802,0x4200002,0x4200002,0x2,0x200002,0x4000000,0x4000800,0x200000,0x4200800,0x802,0x200802,0x4200800,0x802,0x4000002,0x4200802,0x4200000,0x200800,0,0x2,0x4200802,0,0x200802,0x4200000,0x800,0x4000002,0x4000800,0x800,0x200002); 
var spfunction8 = new Array (0x10001040,0x1000,0x40000,0x10041040,0x10000000,0x10001040,0x40,0x10000000,0x40040,0x10040000,0x10041040,0x41000,0x10041000,0x41040,0x1000,0x40,0x10040000,0x10000040,0x10001000,0x1040,0x41000,0x40040,0x10040040,0x10041000,0x1040,0,0,0x10040040,0x10000040,0x10001000,0x41040,0x40000,0x41040,0x40000,0x10041000,0x1000,0x40,0x10040040,0x1000,0x41040,0x10001000,0x40,0x10000040,0x10040000,0x10040040,0x10000000,0x40000,0x10001040,0,0x10041040,0x40040,0x10000040,0x10040000,0x10001000,0x10001040,0,0x10041040,0x41000,0x41000,0x1040,0x1040,0x40040,0x10000000,0x10041000); 
//create the 16 or 48 subkeys we will need 
var keys = des_createKeys (key); 
var m=0, i, j, temp, temp2, right1, right2, left, right, looping; 
var cbcleft, cbcleft2, cbcright, cbcright2 
var endloop, loopinc; 
var len = message.length; 
var chunk = 0; 
//set up the loops for single and triple des 
var iterations = keys.length == 32 ? 3 : 9; //single or triple des 
if (iterations == 3) {looping = encrypt ? new Array (0, 32, 2) : new Array (30, -2, -2);} 
else {looping = encrypt ? new Array (0, 32, 2, 62, 30, -2, 64, 96, 2) : new Array (94, 62, -2, 32, 64, 2, 30, -2, -2);} 
//pad the message depending on the padding parameter 
if (padding == 2) message += " "; //pad the message with spaces 
else if (padding == 1) {temp = 8-(len%8); message += String.fromCharCode (temp,temp,temp,temp,temp,temp,temp,temp); if (temp==8) len+=8;} //PKCS7 padding 
else if (!padding) message += "\0\0\0\0\0\0\0\0"; //pad the message out with null bytes 
//store the result here 
result = ""; 
tempresult = ""; 
if (mode == 1) { //CBC mode 
cbcleft = (iv.charCodeAt(m++) << 24) | (iv.charCodeAt(m++) << 16) | (iv.charCodeAt(m++) << 8) | iv.charCodeAt(m++); 
cbcright = (iv.charCodeAt(m++) << 24) | (iv.charCodeAt(m++) << 16) | (iv.charCodeAt(m++) << 8) | iv.charCodeAt(m++); 
m=0; 
} 
//loop through each 64 bit chunk of the message 
while (m < len) { 
left = (message.charCodeAt(m++) << 24) | (message.charCodeAt(m++) << 16) | (message.charCodeAt(m++) << 8) | message.charCodeAt(m++); 
right = (message.charCodeAt(m++) << 24) | (message.charCodeAt(m++) << 16) | (message.charCodeAt(m++) << 8) | message.charCodeAt(m++); 
//for Cipher Block Chaining mode, xor the message with the previous result 
if (mode == 1) {if (encrypt) {left ^= cbcleft; right ^= cbcright;} else {cbcleft2 = cbcleft; cbcright2 = cbcright; cbcleft = left; cbcright = right;}} 
//first each 64 but chunk of the message must be permuted according to IP 
temp = ((left >>> 4) ^ right) & 0x0f0f0f0f; right ^= temp; left ^= (temp << 4); 
temp = ((left >>> 16) ^ right) & 0x0000ffff; right ^= temp; left ^= (temp << 16); 
temp = ((right >>> 2) ^ left) & 0x33333333; left ^= temp; right ^= (temp << 2); 
temp = ((right >>> 8) ^ left) & 0x00ff00ff; left ^= temp; right ^= (temp << 8); 
temp = ((left >>> 1) ^ right) & 0x55555555; right ^= temp; left ^= (temp << 1); 
left = ((left << 1) | (left >>> 31)); 
right = ((right << 1) | (right >>> 31)); 
//do this either 1 or 3 times for each chunk of the message 
for (j=0; j<iterations; j+=3) { 
endloop = looping[j+1]; 
loopinc = looping[j+2]; 
//now go through and perform the encryption or decryption 
for (i=looping[j]; i!=endloop; i+=loopinc) { //for efficiency 
right1 = right ^ keys[i]; 
right2 = ((right >>> 4) | (right << 28)) ^ keys[i+1]; 
//the result is attained by passing these bytes through the S selection functions 
temp = left; 
left = right; 
right = temp ^ (spfunction2[(right1 >>> 24) & 0x3f] | spfunction4[(right1 >>> 16) & 0x3f] 
| spfunction6[(right1 >>> 8) & 0x3f] | spfunction8[right1 & 0x3f] 
| spfunction1[(right2 >>> 24) & 0x3f] | spfunction3[(right2 >>> 16) & 0x3f] 
| spfunction5[(right2 >>> 8) & 0x3f] | spfunction7[right2 & 0x3f]); 
} 
temp = left; left = right; right = temp; //unreverse left and right 
} //for either 1 or 3 iterations 
//move then each one bit to the right 
left = ((left >>> 1) | (left << 31)); 
right = ((right >>> 1) | (right << 31)); 
//now perform IP-1, which is IP in the opposite direction 
temp = ((left >>> 1) ^ right) & 0x55555555; right ^= temp; left ^= (temp << 1); 
temp = ((right >>> 8) ^ left) & 0x00ff00ff; left ^= temp; right ^= (temp << 8); 
temp = ((right >>> 2) ^ left) & 0x33333333; left ^= temp; right ^= (temp << 2); 
temp = ((left >>> 16) ^ right) & 0x0000ffff; right ^= temp; left ^= (temp << 16); 
temp = ((left >>> 4) ^ right) & 0x0f0f0f0f; right ^= temp; left ^= (temp << 4); 
//for Cipher Block Chaining mode, xor the message with the previous result 
if (mode == 1) {if (encrypt) {cbcleft = left; cbcright = right;} else {left ^= cbcleft2; right ^= cbcright2;}} 
tempresult += String.fromCharCode ((left>>>24), ((left>>>16) & 0xff), ((left>>>8) & 0xff), (left & 0xff), (right>>>24), ((right>>>16) & 0xff), ((right>>>8) & 0xff), (right & 0xff)); 
chunk += 8; 
if (chunk == 512) {result += tempresult; tempresult = ""; chunk = 0;} 
} //for every 8 characters, or 64 bits in the message 
//return the result as an array 
return result + tempresult; 
} //end of des 

//des_createKeys 
//this takes as input a 64 bit key (even though only 56 bits are used) 
//as an array of 2 integers, and returns 16 48 bit keys 
function des_createKeys (key) { 
//declaring this locally speeds things up a bit 
pc2bytes0 = new Array (0,0x4,0x20000000,0x20000004,0x10000,0x10004,0x20010000,0x20010004,0x200,0x204,0x20000200,0x20000204,0x10200,0x10204,0x20010200,0x20010204); 
pc2bytes1 = new Array (0,0x1,0x100000,0x100001,0x4000000,0x4000001,0x4100000,0x4100001,0x100,0x101,0x100100,0x100101,0x4000100,0x4000101,0x4100100,0x4100101); 
pc2bytes2 = new Array (0,0x8,0x800,0x808,0x1000000,0x1000008,0x1000800,0x1000808,0,0x8,0x800,0x808,0x1000000,0x1000008,0x1000800,0x1000808); 
pc2bytes3 = new Array (0,0x200000,0x8000000,0x8200000,0x2000,0x202000,0x8002000,0x8202000,0x20000,0x220000,0x8020000,0x8220000,0x22000,0x222000,0x8022000,0x8222000); 
pc2bytes4 = new Array (0,0x40000,0x10,0x40010,0,0x40000,0x10,0x40010,0x1000,0x41000,0x1010,0x41010,0x1000,0x41000,0x1010,0x41010); 
pc2bytes5 = new Array (0,0x400,0x20,0x420,0,0x400,0x20,0x420,0x2000000,0x2000400,0x2000020,0x2000420,0x2000000,0x2000400,0x2000020,0x2000420); 
pc2bytes6 = new Array (0,0x10000000,0x80000,0x10080000,0x2,0x10000002,0x80002,0x10080002,0,0x10000000,0x80000,0x10080000,0x2,0x10000002,0x80002,0x10080002); 
pc2bytes7 = new Array (0,0x10000,0x800,0x10800,0x20000000,0x20010000,0x20000800,0x20010800,0x20000,0x30000,0x20800,0x30800,0x20020000,0x20030000,0x20020800,0x20030800); 
pc2bytes8 = new Array (0,0x40000,0,0x40000,0x2,0x40002,0x2,0x40002,0x2000000,0x2040000,0x2000000,0x2040000,0x2000002,0x2040002,0x2000002,0x2040002); 
pc2bytes9 = new Array (0,0x10000000,0x8,0x10000008,0,0x10000000,0x8,0x10000008,0x400,0x10000400,0x408,0x10000408,0x400,0x10000400,0x408,0x10000408); 
pc2bytes10 = new Array (0,0x20,0,0x20,0x100000,0x100020,0x100000,0x100020,0x2000,0x2020,0x2000,0x2020,0x102000,0x102020,0x102000,0x102020); 
pc2bytes11 = new Array (0,0x1000000,0x200,0x1000200,0x200000,0x1200000,0x200200,0x1200200,0x4000000,0x5000000,0x4000200,0x5000200,0x4200000,0x5200000,0x4200200,0x5200200); 
pc2bytes12 = new Array (0,0x1000,0x8000000,0x8001000,0x80000,0x81000,0x8080000,0x8081000,0x10,0x1010,0x8000010,0x8001010,0x80010,0x81010,0x8080010,0x8081010); 
pc2bytes13 = new Array (0,0x4,0x100,0x104,0,0x4,0x100,0x104,0x1,0x5,0x101,0x105,0x1,0x5,0x101,0x105); 
//how many iterations (1 for des, 3 for triple des) 
var iterations = key.length > 8 ? 3 : 1; //changed by Paul 16/6/2007 to use Triple DES for 9+ byte keys 
//stores the return keys 
var keys = new Array (32 * iterations); 
//now define the left shifts which need to be done 
var shifts = new Array (0, 0, 1, 1, 1, 1, 1, 1, 0, 1, 1, 1, 1, 1, 1, 0); 
//other variables 
var lefttemp, righttemp, m=0, n=0, temp; 
for (var j=0; j<iterations; j++) { //either 1 or 3 iterations 
left = (key.charCodeAt(m++) << 24) | (key.charCodeAt(m++) << 16) | (key.charCodeAt(m++) << 8) | key.charCodeAt(m++); 
right = (key.charCodeAt(m++) << 24) | (key.charCodeAt(m++) << 16) | (key.charCodeAt(m++) << 8) | key.charCodeAt(m++); 
temp = ((left >>> 4) ^ right) & 0x0f0f0f0f; right ^= temp; left ^= (temp << 4); 
temp = ((right >>> -16) ^ left) & 0x0000ffff; left ^= temp; right ^= (temp << -16); 
temp = ((left >>> 2) ^ right) & 0x33333333; right ^= temp; left ^= (temp << 2); 
temp = ((right >>> -16) ^ left) & 0x0000ffff; left ^= temp; right ^= (temp << -16); 
temp = ((left >>> 1) ^ right) & 0x55555555; right ^= temp; left ^= (temp << 1); 
temp = ((right >>> 8) ^ left) & 0x00ff00ff; left ^= temp; right ^= (temp << 8); 
temp = ((left >>> 1) ^ right) & 0x55555555; right ^= temp; left ^= (temp << 1); 
//the right side needs to be shifted and to get the last four bits of the left side 
temp = (left << 8) | ((right >>> 20) & 0x000000f0); 
//left needs to be put upside down 
left = (right << 24) | ((right << 8) & 0xff0000) | ((right >>> 8) & 0xff00) | ((right >>> 24) & 0xf0); 
right = temp; 
//now go through and perform these shifts on the left and right keys 
for (var i=0; i < shifts.length; i++) { 
//shift the keys either one or two bits to the left 
if (shifts[i]) {left = (left << 2) | (left >>> 26); right = (right << 2) | (right >>> 26);} 
else {left = (left << 1) | (left >>> 27); right = (right << 1) | (right >>> 27);} 
left &= -0xf; right &= -0xf; 
//now apply PC-2, in such a way that E is easier when encrypting or decrypting 
//this conversion will look like PC-2 except only the last 6 bits of each byte are used 
//rather than 48 consecutive bits and the order of lines will be according to 
//how the S selection functions will be applied: S2, S4, S6, S8, S1, S3, S5, S7 
lefttemp = pc2bytes0[left >>> 28] | pc2bytes1[(left >>> 24) & 0xf] 
| pc2bytes2[(left >>> 20) & 0xf] | pc2bytes3[(left >>> 16) & 0xf] 
| pc2bytes4[(left >>> 12) & 0xf] | pc2bytes5[(left >>> 8) & 0xf] 
| pc2bytes6[(left >>> 4) & 0xf]; 
righttemp = pc2bytes7[right >>> 28] | pc2bytes8[(right >>> 24) & 0xf] 
| pc2bytes9[(right >>> 20) & 0xf] | pc2bytes10[(right >>> 16) & 0xf] 
| pc2bytes11[(right >>> 12) & 0xf] | pc2bytes12[(right >>> 8) & 0xf] 
| pc2bytes13[(right >>> 4) & 0xf]; 
temp = ((righttemp >>> 16) ^ lefttemp) & 0x0000ffff; 
keys[n++] = lefttemp ^ temp; keys[n++] = righttemp ^ (temp << 16); 
} 
} //for each iterations 
//return the keys we've created 
return keys; 
} //end of des_createKeys 

////////////////////////////// TEST ////////////////////////////// 
function stringToHex (s) { 
var r = "0x"; 
var hexes = new Array ("0","1","2","3","4","5","6","7","8","9","a","b","c","d","e","f"); 
for (var i=0; i<s.length; i++) {r += hexes [s.charCodeAt(i) >> 4] + hexes [s.charCodeAt(i) & 0xf];} 
return r; 
} 
function hexToString (h) { 
var r = ""; 
for (var i= (h.substr(0, 2)=="0x")?2:0; i<h.length; i+=2) {r += String.fromCharCode (parseInt (h.substr (i, 2), 16));} 
return r; 
} 
var key = "this is a 24 byte key !!"; 
var message = "This is a test message"; 
var ciphertext = des (key, message, 1, 0); 
document.writeln ("DES Test: " + stringToHex (ciphertext));
Javascript 相关文章推荐
javascript 读取图片文件的大小
Jun 25 Javascript
javaScript parseInt字符转化为数字函数使用小结
Nov 05 Javascript
JavaScript高级程序设计 DOM学习笔记
Sep 10 Javascript
js模仿hover的具体实现代码
Dec 30 Javascript
Angular ui.bootstrap.pagination分页
Jan 20 Javascript
详解angularJs指令的3种绑定策略
Apr 13 Javascript
vue的状态管理模式vuex
Nov 30 Javascript
node.js之基础加密算法模块crypto详解
Sep 11 Javascript
vue基础之v-bind属性、class和style用法分析
Mar 11 Javascript
小程序云开发教程如何使用云函数实现点赞功能
May 18 Javascript
Angular封装表单控件及思想总结
Dec 11 Javascript
vue实现桌面向网页拖动文件的示例代码(可显示图片/音频/视频)
Mar 01 Vue.js
无刷新预览所选择的图片示例代码
Apr 02 #Javascript
jQuery防止click双击多次提交及传递动态函数或多参数
Apr 02 #Javascript
jquery跟js初始化加载的多种方法及区别介绍
Apr 02 #Javascript
jquery中子元素和后代元素的区别示例介绍
Apr 02 #Javascript
js 日期比较相关天数代码
Apr 02 #Javascript
你未必知道的JavaScript和CSS交互的5种方法
Apr 02 #Javascript
网页广告中JS代码的信息监听示例
Apr 02 #Javascript
You might like
php array_intersect()函数使用代码
2009/01/14 PHP
Swoole-1.7.22 版本已发布,修复PHP7相关问题
2015/12/31 PHP
微信公众号开发之文本消息自动回复php代码
2016/08/08 PHP
去除链接虚线全面分析总结
2006/08/15 Javascript
用JavaScript实现仿Windows关机效果
2007/03/10 Javascript
ajaxControlToolkit AutoCompleteExtender的用法
2008/10/30 Javascript
JavaScript 基于原型的对象(创建、调用)
2009/10/16 Javascript
javascript 命名规则 变量命名规则
2010/02/25 Javascript
Javascript中的相等与不等运算
2010/04/25 Javascript
深入理解Javascript闭包 新手版
2010/12/28 Javascript
一道JS前端闭包面试题解析
2015/12/25 Javascript
JavaScript的事件机制详解
2017/01/17 Javascript
js CSS3实现卡牌旋转切换效果
2017/07/04 Javascript
JQuery和html+css实现带小圆点和左右按钮的轮播图实例
2017/07/22 jQuery
vue 指定组件缓存实例详解
2018/04/01 Javascript
JavaScript设计模式之构造器模式(生成器模式)定义与用法实例分析
2018/07/26 Javascript
vue实现密码显示与隐藏按钮的自定义组件功能
2019/04/23 Javascript
[02:34]DOTA2英雄基础教程 幽鬼
2014/01/02 DOTA
教大家使用Python SqlAlchemy
2016/02/12 Python
Python 获取windows桌面路径的5种方法小结
2019/07/15 Python
python实现udp聊天窗口
2020/03/31 Python
Django更新models数据库结构步骤
2020/04/01 Python
Keras中的多分类损失函数用法categorical_crossentropy
2020/06/11 Python
Python socket服务常用操作代码实例
2020/06/22 Python
车工岗位职责
2013/11/26 职场文书
医学专业大学生求职信
2014/07/12 职场文书
党员民主生活会个人整改措施材料
2014/09/16 职场文书
农村党支部书记四风问题个人对照检查材料
2014/09/21 职场文书
党员民主评议个人总结
2014/10/20 职场文书
2014年安全保卫工作总结
2014/11/13 职场文书
社区工作者个人总结
2015/02/28 职场文书
2015年幼儿园保育员工作总结
2015/04/23 职场文书
处罚决定书范文
2015/06/24 职场文书
2015年卫生院健康教育工作总结
2015/07/24 职场文书
烈士陵园扫墓感想
2015/08/07 职场文书
CentOS下安装Jenkins的完整步骤
2022/04/07 Servers