先上完成后的页面：当前年年份不显示，不然完整显示。

可以切换和自定义选择。

html:样式和图片自定义。

<view class="image-text_30"><image @click="delMonth" :src="require('@/static/home/zuo.png')" class="icon_4"></image><text @click="selectMonth" lines="1" class="text-group_12">{{ currentYear == new Date().getFullYear() ? currentMonth : currentYear + '年' + currentMonth }}月</text><image @click="addMonth" :src="require('@/static/home/you.png')" class="icon_5"></image>
</view><u-datetime-picker:show="showDateTime"v-model="dateTime"@close="showDateTime = false"@cancel="showDateTime = false"@confirm="confirmDateTime"mode="year-month"closeOnClickOverlay:formatter="formatter"></u-datetime-picker>

JavaScript：

formatter(type, value) {if (type === 'year') {return `${value}年`}if (type === 'month') {return `${value}月`}return value},confirmDateTime(time) {this.currentMonth = new Date(time.value).getMonth() + 1this.currentYear = new Date(time.value).getFullYear()this.showDateTime = falsethis.calendarDate = this.currentYear + '-' + this.currentMonth},delMonth() {if (this.currentMonth == 1) {this.currentMonth = 12this.currentYear -= 1} else {this.currentMonth -= 1}this.setTime(this.currentYear, this.currentMonth)},addMonth() {if (this.currentMonth == 12) {this.currentMonth = 1this.currentYear += 1} else {this.currentMonth += 1}this.setTime(this.currentYear, this.currentMonth)},setTime(year, month) {this.dateTime = Number(new Date(year, month - 1))this.currentMonth = new Date(year, month - 1).getMonth() + 1this.currentYear = new Date(year, month - 1).getFullYear()this.calendarDate = this.currentYear + '-' + this.currentMonth},

代码逻辑上面还是可以优化的。懒得弄了

其实没难度，但是个人简单记录下，逻辑放这里，下次需要可以再copy。