1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
| <!DOCTYPE html>
<html lang="zh">
<head>
<meta charset="UTF-8">
<title>Document</title>
</head>
<style>
#wrapper {
position: absolute;
left: 50%;
top: 50%;
margin-left: -150px;
margin-top: -100px;
width: 300px;
height: 200px;
text-align: center;
}
.count-box label,
.amount-box label {
display: inline-block;
width: 70px;
}
.send {
margin-top: 10px;
padding: 5px 0;
background-color: #63B8FF;
width: 140px;
color: white;
cursor: pointer;
}
/* 红包 */
#red-box {
display: none;
overflow: hidden;
position: absolute;
left: 50%;
top: 50%;
width: 300px;
height: 450px;
transform: translate(-50%, -50%);
background-color: #B22222;
border-radius: 10px;
}
.close {
position: absolute;
right: 20px;
top: 20px;
z-index: 1000;
cursor: pointer;
user-select: none;
color: #fff;
}
.user-info,
.show-info {
width: 100%;
text-align: center;
}
.show-info {
display: none;
}
.user-info img,
.show-info img {
height: 80px;
width: 80px;
border-radius: 40px;
margin-top: 20px;
}
.slide {
position: absolute;
top: 0;
left: 0;
height: 300px;
width: 300px;
background-color: #EE6A50;
border-radius: 0 0 50px 50px;
}
.slide-animation {
animation: slideTop .5s linear forwards;
}
@keyframes slideTop {
0% { height: 300px; }
100% { height: 60px; }
}
.open {
position: absolute;
bottom: -40px;
left: 50%;
margin-left: -40px;
width: 80px;
height: 80px;
line-height: 80px;
text-align: center;
background: orange;
border-radius: 40px;
border: 1px solid #fff;
cursor: pointer;
animation: openSlide 1s infinite forwards;
}
@keyframes openSlide {
0% { transform: rotateY(0deg); }
100% { transform: rotateY(380deg); }
}
.title {
color: #fff;
font-weight: bold;
}
.own-money {
color: #fff;
font-size: 20px;
font-weight: bold;
}
.money-rank {
color: #fff;
font-size: 12px;
font-weight: bold;
}
/* 随机产生红包 */
.user-receive {
background-color: rgba(255, 165, 0, .5);
margin: 10px auto;
height: 200px;
width: 200px;
border-radius: 10px;
padding: 2px 5px;
overflow: auto;
}
.user-receive p {
text-align: left;
color: #fff;
font-size: 12px;
margin: 5px;
}
.user-receive span {
margin-left: 5px;
color: yellow;
font-size: 8px;
}
<div id="wrapper">
<h1>红包模拟器</h1>
<div class="count-box">
<label for="count">红包个数</label>
</div>
<div class="amount-box">
<label for="amount">总金额</label>
</div>
<button class="send">发红包</button>
</div>
<div id="red-box">
<div class="close">X</div>
<div class="slide">
<div class="user-info">
<img src="http://s3a.pstatp.com/cg_growth/resource/boilerplate/images/redpacket/avatar.png">
<p class="title">JScoder</p>
<p>给您发送了一个红包</p>
<p class="title">恭喜发财 大吉大利</p>
</div>
<div class="show-info">
<img src="http://s3a.pstatp.com/cg_growth/resource/boilerplate/images/redpacket/avatar.png">
<p class="own-money"></p>
<p class="money-rank">红包领取榜</p>
<div class="user-receive"></div>
</div>
<div class="open">拆红包</div>
</div>
</div>
let send = document.querySelector('.send')
let close = document.querySelector('.close')
let redBox = document.querySelector('#red-box')
let open = document.querySelector('.open')
let slide = document.querySelector('.slide')
let sendRed = document.querySelector('.send-red')
let userInfo = document.querySelector('.user-info')
let showInfo = document.querySelector('.show-info')
send.onclick = function () {
// 当红包个数或者总金额为0时，提示需要输入
let count = document.querySelector('#count').value
let amount = document.querySelector('#amount').value
if (count == '' || amount == '') {
alert('输入有问题！请输入红包个数或者总金额数不能为空')
return
}
if (count == '0' || amount == '0') {
alert('输入有问题！输入的红包个数或者总金额数不能为0')
return
}
redBox.style.display = 'block'
}
close.onclick = function () {
redBox.style.display = 'none'
userInfo.style.display = 'block'
showInfo.style.display = 'none'
open.style.display = 'block'
slide.className = 'slide'
}
// 拆红包
open.onclick = function () {
randomMoney()
this.style.display = 'none'
userInfo.style.display = 'none'
showInfo.style.display = 'block'
slide.className = 'slide slide-animation'
}
// 随机产生金额
function randomMoney () {
let count = document.querySelector('#count').value
let amount = document.querySelector('#amount').value
let ownMoney = document.querySelector('.own-money')
let userReceive = document.querySelector('.user-receive')
let oSpan = document.createElement('span')
let max = 0.01 // 记录运气最佳
let key = 0 // 记录运气最佳的下标
let everyMoney = randomFn(amount, count)
userReceive.innerHTML = '' // 点击关闭时对他进行一个重置
everyMoney.forEach((item, index) => {
if (max <= item) {
max = item
key = index
}
let p = document.createElement('p')
p.innerText = `用户${index+1}：${item}`
userReceive.appendChild(p)
})
ownMoney.innerText = max
oSpan.innerText = '运气最佳'
userReceive.children[key].appendChild(oSpan)
}
// 随机分配函数
// 思路：每次0.01<=得出的红包值<=剩余金额-剩余人数*0.01，最后一个人获得剩余全部
function randomFn (amount, count) {
let total = amount
let arr = []
for (let i = 0 ; i < count - 1 ; i++) {
// 改为向上取整，保证每个红包的值至少为0.01
let one = Math.ceil(Math.random() * (total - (count - 1 - i) * 0.01) * 100) / 100
arr.push(one)
total -= one
}
arr.push(Number(total.toFixed(2)))
return arr
}
|
