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一、背景

目前做的管理系统项目，期望实现功能为：设置出账周期和出账日，考虑使用element ui下拉框实现功能

二、所用技术

vue2+element ui

三、实现效果

四、具体代码

<template><popup-frame :title="`批量设置出账日`" :showBtn="['', '']" @close="close()" ref="popup"><div class="print-pop"><div class="setting">账单生成设置</div><el-form ref="form" :model="form" label-width="80px" size="mini"><div style="display: flex; align-items: center"><el-form-item label="出账周期"><el-select v-model="form.recentMonth" @change="monthChange" placeholder="选择月份" style="width: 80px"><el-option v-for="item in month" :key="item.value" :label="item.label" :value="item.value"></el-option></el-select><span>月</span></el-form-item><el-form-item label="出账日：每个出账月份的第" label-width="260px"><el-select v-model="form.day" placeholder="选择天数" style="width: 80px"><el-option v-for="item in days" :key="item.value" :label="item.label" :value="item.value"></el-option><!-- 其他日期选项 --></el-select><span>日</span></el-form-item></div><!-- 按钮区域 --><el-row><el-col :span="24" class="btn-container"><el-form-item><el-button @click="close()">取消</el-button><el-button type="primary" @click="onSubmit">确定</el-button></el-form-item></el-col></el-row></el-form></div></popup-frame>
</template><script>
export default {name: 'print-pop',props: {ids: {type: Array,default: () => {return []}}},data() {return {//周期/月份month: [],//天数/日days: [],form: {recentMonth: '',day: ''}}},created() {this.init()},methods: {init() {let myData = new Date() //获取当前日期let month = myData.getMonth() + 1 //获取当前月份let day = myData.getDate() //获取当天日期this.initSelectMonth(month) // 调用initSelectMonth方法，初始化月份选项this.form.recentMonth = month // 将月份设置为当前月份this.monthChange(month) //生成对应月份的天数选项this.form.day = day // 将天数设置为当天的日期},//初始化月份选项initSelectMonth(month) {this.month = []for (let i = 1; i <= 12; i++) {this.month.push({ value: i, label: i })}},//生成对应月份的天数选项monthChange(val) {const month = parseInt(val, 10)// 将传入的月份转换为整数const daysInMonth = new Date(new Date().getFullYear(), month, 0).getDate()// 获取对应月份的天数const days = []for (let i = 1; i <= daysInMonth; i++) {days.push({ value: i, label: i })}this.form.day = ''// 清空天数表单项this.days = days// 更新天数选项},//确定按钮onSubmit() {this.$emit('close')//用于向父组件发信息，关闭弹窗的this.getSaveDate()},//此处为点击确定按钮发请求getSaveDate() {console.log('点击了确认按钮')},close(param) {this.$emit('close', param)}}
}
</script><style lang="scss" scoped>
.print-pop {width: fit-content;
}
.setting {margin-bottom: 10px;
}
.btn-container {display: flex;justify-content: flex-end;margin-top: 50px;
}
</style>