# 抽奖轮盘
- html部分
<div class="container">
<div class="spinBtn">spin</div>
<div class="wheel">
<div class="mumber" style="--i: 1; --clr: #db7093">
<span>100</span>
</div>
<div class="mumber" style="--i: 2; --clr: #20b2aa">
<span>1</span>
</div>
<div class="mumber" style="--i: 3; --clr: #d63e92">
<span>50</span>
</div>
<div class="mumber" style="--i: 4; --clr: #daa520">
<span>20</span>
</div>
<div class="mumber" style="--i: 5; --clr: #ff340f">
<span>80</span>
</div>
<div class="mumber" style="--i: 6; --clr: #ff7f50">
<span>200</span>
</div>
<div class="mumber" style="--i: 7; --clr: #3cb371">
<span>120</span>
</div>
<div class="mumber" style="--i: 8; --clr: #416028">
<span>90</span>
</div>
</div>
</div>
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- css部分
@import url("https://fonts.googleapis.com/css?family=Poppins:200,300,400,500,600,700,800,900&display=swap");
* {
margin: 0;
padding: 0;
box-sizing: border-box;
font-family: "Poppins" sans-serif;
}
body {
display: flex;
justify-content: center;
align-items: center;
min-height: 100vh;
background: #333;
}
.container {
position: relative;
width: 400px;
height: 400px;
display: flex;
justify-content: center;
align-items: center;
}
.container .spinBtn {
position: absolute;
width: 60px;
height: 60px;
background: #fff;
border-radius: 50%;
z-index: 10;
display: flex;
justify-content: center;
align-items: center;
text-transform: uppercase;
font-weight: 600;
color: #333;
letter-spacing: 0.1em;
cursor: pointer;
user-select: none;
}
.container .spinBtn::before {
content: "";
position: absolute;
top: -28px;
width: 20px;
height: 30px;
background: #fff;
clip-path: polygon(50% 0%, 15% 100%, 85% 100%);
}
.container .wheel {
position: absolute;
top: 0;
left: 0;
width: 100%;
height: 100%;
overflow: hidden;
background: #333;
border-radius: 50%;
box-shadow: 0 0 0 5px #333, 0 0 0 15px #fff, 0 0 0 18px #111;
transition: transform 5s ease-in-out;
}
.container .wheel .mumber {
position: absolute;
width: 50%;
height: 50%;
background: var(--clr);
transform-origin: bottom right;
transform: rotate(calc(45deg * var(--i)));
clip-path: polygon(0 0, 55% 0, 100% 100%, 0 55%);
display: flex;
justify-content: center;
align-items: center;
user-select: none;
}
.container .wheel .mumber span {
position: relative;
transform: rotate(45deg);
font-size: 2em;
font-weight: 700;
color: #fff;
text-shadow: 3px 5px 2px rgba(0, 0, 0, 0.15);
}
.container .wheel .mumber span::after {
content: "$";
position: absolute;
font-size: 0.75em;
font-weight: 500;
}
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- js部分
const query = (dom) => document.querySelector(dom);
const startRotate = () => Math.ceil(Math.random() * 3600);
let wheel = query(".wheel");
let spinBtn = query(".spinBtn");
let rotateDeg = startRotate();
spinBtn.onclick = function () {
// console.log("click");
wheel.style.transform = "rotate(" + rotateDeg + "deg)";
rotateDeg = startRotate();
};
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