七夕给我亲爱的一个惊喜，哈哈哈，作为程序员，上班偷偷摸摸地。这里感谢旋之华老师在vue教程中教的es6知识，
很有用，以及https://www.cnblogs.com/sunshine21/p/7757958.html#4044684的博客分享。
附上代码：
1 <!DOCTYPE html> 2 <html lang="en"> 3 4 <head> 5 <meta charset="UTF-8"> 6 <title>给我亲爱的</title> 7 <script src="js/underScore.min.js"></script> 8 </head> 9 10 <body> 11 <h1>惊不惊喜？意不意外！</h1> 12 <div class="ourstime"> 13 <img class="opic pic1" src="images/ot1.jpg"> 14 <img class="opic pic2" src="images/ot2.jpg"> 15 <img class="opic pic3" src="images/ot3.jpg"> 16 <img class="opic pic4" src="images/ot4.jpg"> 17 </div> 18 <canvas></canvas> 19 <div class="dir"> 20 <div class="heart"></div> 21 <span>给你的七夕惊喜<br> 22 最爱的就是你</span> 23 <div class="heart"></div> 24 </div> 25 <!-- 外层最大容器 --> 26 <div class="wrap"> 27 <!--包裹所有元素的容器--> 28 <div class="cube"> 29 <!--前面图片 --> 30 <div class="out_front"> 31 <img src="images/h1.jpg" class="pic"> 32 </div> 33 <!--后面图片 --> 34 <div class="out_back"> 35 <img src="images/h2.jpg" class="pic"> 36 </div> 37 <!--左面图片 --> 38 <div class="out_left"> 39 <img src="images/h3.jpg" class="pic"> 40 </div> 41 <!--右面图片 --> 42 <div class="out_right"> 43 <img src="images/h4.jpg" class="pic"> 44 </div> 45 <!--上面图片 --> 46 <div class="out_top"> 47 <img src="images/h5.jpg" class="pic"> 48 </div> 49 <!--下面图片 --> 50 <div class="out_bottom"> 51 <img src="images/h6.jpg" class="pic"> 52 </div> 53 54 <!--小正方体 --> 55 <span class="in_front"> 56 <img src="images/h7.jpg" class="in_pic"> 57 </span> 58 <span class="in_back"> 59 <img src="images/h8.jpg" class="in_pic"> 60 </span> 61 <span class="in_left"> 62 <img src="images/h9.jpg" class="in_pic"> 63 </span> 64 <span class="in_right"> 65 <img src="images/h10.jpg" class="in_pic"> 66 </span> 67 <span class="in_top"> 68 <img src="images/h11.jpg" class="in_pic"> 69 </span> 70 <span class="in_bottom"> 71 <img src="images/h12.jpg" class="in_pic"> 72 </span> 73 </div> 74 75 </div> 76 <script> 77 var canvas = document.querySelector('canvas'); 78 var ctx = canvas.getContext('2d'); 79 canvas.width = 900; 80 canvas.height = 600; 81 canvas.style.backgroundColor = 'salmon'; 82 83 84 85 class Heart { 86 /** 87 * 构造器 88 */ 89 constructor(x, y, a, color) { 90 this.x = x; 91 this.y = y; 92 this.a = 3; 93 this.color = color; 94 } 95 96 /** 97 * 绘制心 98 */ 99 draw() { 100 ctx.save(); 101 ctx.beginPath(); 102 ctx.translate(-1000, this.y); 103 this.vertices = []; 104 for (let i = 0; i < 30; i++) { 105 var step = i / 30 * (Math.PI * 2); 106 var vector = { 107 x: this.a * (15 * Math.pow(Math.sin(step), 3)), 108 y: this.a * (-(13 * Math.cos(step) - 5 * Math.cos(2 * step) - 2 * Math.cos(3 * step) - 109 Math.cos(4 * 110 step))) 111 } 112 ctx.lineTo(vector.x, vector.y); 113 this.vertices.push(vector); 114 } 115 ctx.shadowColor = this.color; 116 ctx.shadowOffsetX = this.x + 1000; 117 ctx.fill(); 118 ctx.restore(); 119 } 120 121 } 122 123 // 会移动的心 124 class MoveHeart extends Heart { 125 constructor(x, y, a, color) { 126 super(x, y, a, color); 127 128 // 量的变化 129 this.dX = _.random(-5, 5); 130 this.dY = _.random(-5, 5); 131 this.dA = _.random(0.1, 2.5); 132 } 133 134 upDate() { 135 this.x += this.dX; 136 this.y += this.dY; 137 this.a -= this.dA; 138 if (this.a < 0) { 139 this.a = 0; 140 } 141 } 142 143 } 144 145 // 实例化心 146 let colorArr = ['red', 'green', 'blue', 'yellow', 'purple', 'pink', 'orange']; 147 let HeartArr = []; 148 149 // 监听鼠标的移动 150 canvas.addEventListener('mousemove', function (e) { 151 HeartArr.push(new MoveHeart(e.offsetX, e.offsetY, 2.5, colorArr[_.random(0, colorArr.length - 1)])); 152 }); 153 154 // 开启定时器 155 setInterval(function () { 156 // 清屏 157 ctx.clearRect(0, 0, canvas.width, canvas.height); 158 // 绘制 159 for (let i = 0; i < HeartArr.length; i++) { 160 HeartArr[i].draw(); 161 HeartArr[i].upDate(); 162 } 163 }, 50); 164 </script> 165 </body> 166 <style> 167 body { 168 text-align: center; 169 background-color: beige; 170 } 171 172 h1 { 173 color: #444642; 174 text-shadow: 2px 2px 0 darkgoldenrod; 175 } 176 177 .ourstime { 178 left: 20px; 179 position: absolute; 180 ; 181 } 182 183 .ourstime img { 184 padding: 10px 10px 15px; 185 background: white; 186 border: 1px solid #ddd; 187 box-shadow: 2px 2px 3px rgba(50, 50, 50, 0.4); 188 -webkit-transition: all 0.5s ease-in; 189 -moz-transition: all 0.5s ease-in; 190 transition: all 0.5s ease-in; 191 position: absolute; 192 z-index: 1; 193 } 194 195 opic{ 196 height: 200px; 197 } 198 199 .ourstime img:hover { 200 box-shadow: 15px 15px 20px rgba(50, 50, 50, 0.4); 201 -webkit-transform: rotate(0deg) scale(1.20); 202 -moz-transform: rotate(0deg) scale(1.20); 203 transform: rotate(0deg) scale(1.20); 204 z-index: 2; 205 } 206 207 208 #canvas { 209 box-shadow: 0 0 10px #000; 210 margin: 1px auto; 211 212 } 213 214 .dir { 215 display: flex; 216 align-items: center; 217 justify-content: center 218 } 219 220 .heart { 221 width: 160px; 222 height: 200px; 223 position: relative; 224 } 225 226 .dir span { 227 font-family: 幼圆; 228 font-size: 20px; 229 height: 20px; 230 color: beige; 231 } 232 233 @keyframes changecolor { 234 0% { 235 color: red; 236 } 237 20% { 238 color: rgb(199, 19, 64); 239 } 240 40% { 241 color: rgb(133, 45, 10); 242 } 243 60% { 244 color: rgb(61, 9, 13); 245 } 246 80% { 247 color: rgb(185, 27, 88); 248 } 249 100% { 250 color: red; 251 } 252 } 253 254 div span:hover{ 255 animation: changecolor 5s ease-out .2s; 256 } 257 258 .heart:before { 259 content: " "; 260 border: 0 solid transparent; 261 -moz-border-radius: 100px; 262 -webkit-border-radius: 100px; 263 border-radius: 100px 100px 0 0; 264 width: 80px; 265 height: 120px; 266 background: #ff007f; 267 transform: rotate(-45deg); 268 position: absolute; 269 left: 20px; 270 box-shadow: 4px 4px 10px #de3163; 271 272 } 273 274 .heart:after { 275 content: " "; 276 border: 0 solid transparent; 277 -moz-border-radius: 100px; 278 -webkit-border-radius: 100px; 279 border-radius: 100px 100px 0 0; 280 width: 80px; 281 height: 120px; 282 background: #ff007f; 283 transform: rotate(45deg); 284 position: absolute; 285 left: 48px; 286 top: 0px; 287 288 } 289 290 291 /*最外层容器样式*/ 292 293 .wrap { 294 width: 100px; 295 height: 100px; 296 margin: 150px; 297 position: absolute; 298 top: 0px; 299 right: 0px; 300 } 301 302 /*包裹所有容器样式*/ 303 304 .cube { 305 width: 50px; 306 height: 50px; 307 margin: 0 auto; 308 transform-style: preserve-3d; 309 transform: rotateX(-30deg) rotateY(-80deg); 310 animation: rotate linear 20s infinite; 311 } 312 313 @keyframes rotate { 314 from { 315 transform: rotateX(0deg) rotateY(0deg); 316 } 317 to { 318 transform: rotateX(360deg) rotateY(360deg); 319 } 320 } 321 322 .cube div { 323 position: absolute; 324 width: 200px; 325 height: 200px; 326 opacity: 0.8; 327 transition: all .4s; 328 } 329 330 /*定义所有图片样式*/ 331 332 .pic { 333 width: 200px; 334 height: 200px; 335 } 336 337 .pic1 { 338 left: 0px; 339 top: 0; 340 width: 180px; 341 transform: rotate(-5deg); 342 } 343 344 .pic2 { 345 left: 250px; 346 top: 0px; 347 width: 180px; 348 transform: rotate(9deg); 349 } 350 351 .pic3 { 352 left: 0px; 353 top: 300px; 354 width: 180px; 355 transform: rotate(-11deg); 356 } 357 358 .pic4 { 359 left: 250px; 360 top: 300px; 361 width: 180px; 362 transform: rotate(20deg); 363 } 364 365 .cube .out_front { 366 transform: rotateY(0deg) translateZ(100px); 367 } 368 369 .cube .out_back { 370 transform: translateZ(-100px) rotateY(180deg); 371 } 372 373 .cube .out_left { 374 transform: rotateY(-90deg) translateZ(100px); 375 } 376 377 .cube .out_right { 378 transform: rotateY(90deg) translateZ(100px); 379 } 380 381 .cube .out_top { 382 transform: rotateX(90deg) translateZ(100px); 383 } 384 385 .cube .out_bottom { 386 transform: rotateX(-90deg) translateZ(100px); 387 } 388 389 /*定义小正方体样式*/ 390 391 .cube span { 392 display: block; 393 width: 100px; 394 height: 100px; 395 position: absolute; 396 top: 50px; 397 left: 50px; 398 } 399 400 .cube .in_pic { 401 width: 100px; 402 height: 100px; 403 } 404 405 .cube .in_front { 406 transform: rotateY(0deg) translateZ(50px); 407 } 408 409 .cube .in_back { 410 transform: translateZ(-50px) rotateY(180deg); 411 } 412 413 .cube .in_left { 414 transform: rotateY(-90deg) translateZ(50px); 415 } 416 417 .cube .in_right { 418 transform: rotateY(90deg) translateZ(50px); 419 } 420 421 .cube .in_top { 422 transform: rotateX(90deg) translateZ(50px); 423 } 424 425 .cube .in_bottom { 426 transform: rotateX(-90deg) translateZ(50px); 427 } 428 429 /*鼠标移入后样式*/ 430 431 .cube:hover .out_front { 432 transform: rotateY(0deg) translateZ(200px); 433 } 434 435 .cube:hover .out_back { 436 transform: translateZ(-200px) rotateY(180deg); 437 } 438 439 .cube:hover .out_left { 440 transform: rotateY(-90deg) translateZ(200px); 441 } 442 443 .cube:hover .out_right { 444 transform: rotateY(90deg) translateZ(200px); 445 } 446 447 .cube:hover .out_top { 448 transform: rotateX(90deg) translateZ(200px); 449 } 450 451 .cube:hover .out_bottom { 452 transform: rotateX(-90deg) translateZ(200px); 453 } 454 </style> 455 456 </html>
效果：
