OMGZui

public class Foo {
    private final String a;
    private final Integer b;

    public Foo(String a, Integer b) {
        this.a = a;
        this.b = b;
    }
}

OMGZui

:root {
  --bg: #000;
  --primary: #70233b;
  --control: #d5d8dd;
}

OMGZui

.head {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
  width: 250px;
  height: 250px;
  border-radius: 50%;
  border: 10px solid var(--primary);
  background-image: repeating-conic-gradient(

OMGZui

.head .front {
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  right: 0;
  width: 96%;
  height: 96%;
  margin: auto;
  background: -webkit-linear-gradient(top, transparent 20px, var(--bg) 21px),

OMGZui

.fan-main {
  position: relative;
  width: 100%;
  height: 100%;
}
.fan-item {
  position: absolute;
  top: 39px;
  left: 100px;
  width: 50px;

OMGZui

.control {
  position: relative;
  width: 100px;
  height: 0px;
  border-top: 0px;
  border-right: 25px solid transparent;
  border-bottom: 90px solid var(--primary);
  border-left: 25px solid transparent;
  margin-top: -10px;
}

OMGZui

# html
<div class="control-main">
    <div :class="`control-item control-item-${control}`" @click="changeControl"></div>
    <div class="control-item"></div>
</div>
## js
changeControl() {
    if (this.control < 3) {
        this.control++;
    } else {

OMGZui

CREATE TABLE `doc` (
  `id` int(11) NOT NULL AUTO_INCREMENT COMMENT 'ID',
  `position` int(11) DEFAULT '0' COMMENT 'position',
  PRIMARY KEY (`id`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4;

OMGZui

UPDATE doc SET position = position + 1 WHERE position >= #{newPosition}

OMGZui

SELECT * FROM doc ORDER BY position ASC;