效果如下：
[{"label":"第一周","value":1,"date":["-06-26","-07-02"]},{"label":"第二周","value":2,"date":["-07-03","-07-09"]},{"label":"第三周","value":3,"date":["-07-10","-07-16"]},{"label":"第四周","value":4,"date":["-07-17","-07-23"]},{"label":"第五周","value":5,"date":["-07-24","-07-30"]},{"label":"第六周","value":6,"date":["-07-31","-08-06"]}]
调用：
allweeks('-07');this.allweeks('-07');
JS：
/** 本月的每一周*/function allWeeks(now_month) {let week_array = [];let today = (now_month != null && now_month != undefined && now_month != '') ? new Date(Date.parse(now_month)) : new Date();;let year = today.getFullYear();let month = today.getMonth();let i = 0;let weekTimes = 1;let start = new Date(year, month, 1); // 得到当月第一天let end = new Date(year, month+1, 6); // 用于比较let start_day = start.getDay(); // 当月第一天是周几switch(start_day){case 0: i = 0 - 5; break;case 1: i = 1; break;case 2: i = 0; break;case 3: i = 0 - 1; break;case 4: i = 0 - 2; break;case 5: i = 0 - 3; break;case 6: i = 0 - 4; break;}while ( new Date(year, month, i + 6) <= end) {week_array.push({"label":"第"+numberToChinese(weekTimes)+"周","value":weekTimes,"date":[new Date(year, month, i).format("yyyy-MM-dd"),new Date(year, month, i + 6).format("yyyy-MM-dd")]})i += 7;weekTimes++;}console.log(week_array);return week_array;}/** 数字转中文 */function numberToChinese(num) {const chineseNums = ['零', '一', '二', '三', '四', '五', '六', '七', '八', '九'];const chineseUnits = ['', '十', '百', '千'];if (num === 0) {return chineseNums[0];}let chineseStr = '';let unitIndex = 0;while (num > 0) {const digit = num % 10;if (digit !== 0) {// 处理非零数字chineseStr = chineseNums[digit] + chineseUnits[unitIndex] + chineseStr;} else if (chineseStr.charAt(0) !== chineseNums[0]) {// 处理连续的零，只保留一个零chineseStr = chineseNums[0] + chineseStr;}num = Math.floor(num / 10);unitIndex++;}return chineseStr;}/** 日期格式化 */Date.prototype.format = function (fmt) {var o = {"M+": this.getMonth() + 1, //月份"d+": this.getDate(), //日"h+": this.getHours(), //小时"m+": this.getMinutes(), //分"s+": this.getSeconds(), //秒"q+": Math.floor((this.getMonth() + 3) / 3), //季度"S": this.getMilliseconds() //毫秒};if (/(y+)/.test(fmt)) {fmt = fmt.replace(RegExp.$1, (this.getFullYear() + "").substr(4 - RegExp.$1.length));}for (var k in o) {if (new RegExp("(" + k + ")").test(fmt)) {fmt = fmt.replace(RegExp.$1, (RegExp.$1.length == 1) ? (o[k]) : (("00" + o[k]).substr(("" + o[k]).length)));}}return fmt;}
VUE：
<!-- 搜索工作栏 --><el-form :model="queryParams" ref="queryForm" size="small" :inline="true" v-show="showSearch" label-width="68px"><el-form-item label="月份" prop="month"><el-date-picker v-model="queryParams.month" placeholder="请选择月份" style="width: 240px" value-format="yyyy-MM" type="month" range-separator="-"/></el-form-item><el-form-item label="周次" prop="weekTimes"><el-select v-model="queryParams.weekTimes" placeholder="请选择周次" clearable><el-option v-for="dict in this.allWeeks(queryParams.month)":key="dict.value" :label="dict.label" :value="dict.value"/></el-select></el-form-item><el-form-item><el-button type="primary" icon="el-icon-search" @click="handleQuery">搜索</el-button><el-button icon="el-icon-refresh" @click="resetQuery">重置</el-button></el-form-item></el-form>
methods:{/** 本月的每一周*/allWeeks(now_month) {let week_array = [];let today = (now_month != null && now_month != undefined && now_month != '') ? new Date(Date.parse(now_month)) : new Date();;let year = today.getFullYear();let month = today.getMonth();let i = 0;let weekTimes = 1;let start = new Date(year, month, 1); // 得到当月第一天let end = new Date(year, month+1, 6); // 用于循环时比较let start_day = start.getDay(); // 当月第一天是周几switch(start_day){case 0: i = 0 - 5; break;case 1: i = 1; break;case 2: i = 0; break;case 3: i = 0 - 1; break;case 4: i = 0 - 2; break;case 5: i = 0 - 3; break;case 6: i = 0 - 4; break;}while ( new Date(year, month, i + 6) <= end) {week_array.push({"label":"第"+this.numberToChinese(weekTimes)+"周","value":weekTimes,"date":[this.dateFmt(new Date(year, month, i),"yyyy-MM-dd"),this.dateFmt(new Date(year, month, i + 6),"yyyy-MM-dd")]})i += 7;weekTimes++;}console.log(week_array);return week_array;},/** 数字转中文 */numberToChinese(num) {const chineseNums = ['零', '一', '二', '三', '四', '五', '六', '七', '八', '九'];const chineseUnits = ['', '十', '百', '千'];if (num === 0) {return chineseNums[0];}let chineseStr = '';let unitIndex = 0;while (num > 0) {const digit = num % 10;if (digit !== 0) {// 处理非零数字chineseStr = chineseNums[digit] + chineseUnits[unitIndex] + chineseStr;} else if (chineseStr.charAt(0) !== chineseNums[0]) {// 处理连续的零，只保留一个零chineseStr = chineseNums[0] + chineseStr;}num = Math.floor(num / 10);unitIndex++;}return chineseStr;},/** 日期格式化 */dateFmt(date,fmt) {let o = {"M+": date.getMonth() + 1, //月份"d+": date.getDate(), //日"h+": date.getHours(), //小时"m+": date.getMinutes(), //分"s+": date.getSeconds(), //秒"q+": Math.floor((date.getMonth() + 3) / 3), //季度"S": date.getMilliseconds() //毫秒};if (/(y+)/.test(fmt)) {fmt = fmt.replace(RegExp.$1, (date.getFullYear() + "").substr(4 - RegExp.$1.length));}for (var k in o) {if (new RegExp("(" + k + ")").test(fmt)) {fmt = fmt.replace(RegExp.$1, (RegExp.$1.length == 1) ? (o[k]) : (("00" + o[k]).substr(("" + o[k]).length)));}}return fmt;}}
