elementUI官方案例：http://element.eleme.io/#/zh-CN/component/date-picker
（1）效果图：
（2）安装和引入
npm i element-ui --save //下载依赖包
main.js//vue-cli自动生成的文件main.js 添加以下两行import {DatePicker} from 'element-ui'Vue.use(DatePicker) //使用DatePicker （3）到自己的组件demo.vue里使用：
选择的时间：{ {rangeTime}} （4）样式date-picker.css文件如下（可按照自己项目修改颜色）：
.el-date-table td.in-range div,.el-date-table td.in-range div:hover,.el-date-table.is-week-mode .el-date-table__row.current div,.el-date-table.is-week-mode .el-date-table__row:hover div { background-color: #f7f7f7}.el-date-table { font-size: 12px; -webkit-user-select: none; -moz-user-select: none; -ms-user-select: none; user-select: none}.el-date-table.is-week-mode .el-date-table__row:hover td.available:hover { color: #5a5e66}.el-date-table.is-week-mode .el-date-table__row:hover td:first-child div { margin-left: 5px; border-top-left-radius: 15px; border-bottom-left-radius: 15px}.el-date-table.is-week-mode .el-date-table__row:hover td:last-child div { margin-right: 5px; border-top-right-radius: 15px; border-bottom-right-radius: 15px}.el-date-table td { width: 32px; height: 30px; padding: 4px 0; -webkit-box-sizing: border-box; box-sizing: border-box; text-align: center; cursor: pointer; position: relative}.el-date-table td div { height: 30px; padding: 3px 0; -webkit-box-sizing: border-box; box-sizing: border-box}.el-date-table td span { width: 24px; height: 24px; display: block; margin: 0 auto; line-height: 24px; position: absolute; left: 50%; -webkit-transform: translateX(-50%); transform: translateX(-50%); border-radius: 50%}.el-month-table td .cell,.el-year-table td .cell { width: 48px; height: 32px; display: block; line-height: 32px}.el-date-table td.next-month,.el-date-table td.prev-month { color: #b4bccc}.el-date-table td.today { position: relative}.el-date-table td.today span { color: #f6ad35}.el-date-table td.today.end-date span,.el-date-table td.today.start-date span { color: #fff}.el-date-table td.available:hover { color: #f6ad35}.el-date-table td.current:not(.disabled) span { color: #fff; background-color: #f6ad35}.el-date-table td.end-date div,.el-date-table td.start-date div { color: #fff}.el-date-table td.end-date span,.el-date-table td.start-date span { background-color: #f6ad35}.el-date-table td.start-date div { margin-left: 5px; border-top-left-radius: 15px; border-bottom-left-radius: 15px}.el-date-table td.end-date div { margin-right: 5px; border-top-right-radius: 15px; border-bottom-right-radius: 15px}.el-date-table td.disabled div { background-color: #f5f7fa; opacity: 1; cursor: not-allowed; color: #b4bccc}.el-fade-in-enter,.el-fade-in-leave-active,.el-fade-in-linear-enter,.el-fade-in-linear-leave,.el-fade-in-linear-leave-active,.fade-in-linear-enter,.fade-in-linear-leave,.fade-in-linear-leave-active { opacity: 0}.el-date-table td.week { font-size: 80%; color: #5a5e66}.el-date-table th { padding: 5px; color: #5a5e66; font-weight: 400; border-bottom: solid 1px #e6ebf5}.el-month-table { font-size: 12px; margin: -1px; border-collapse: collapse}.el-month-table td { text-align: center; padding: 20px 3px; cursor: pointer}.el-month-table td.disabled .cell { background-color: #f5f7fa; cursor: not-allowed; color: #b4bccc}.el-month-table td.disabled .cell:hover { color: #b4bccc}.el-month-table td .cell { color: #5a5e66; margin: 0 auto}.el-month-table td .cell:hover,.el-month-table td.current:not(.disabled) .cell { color: #f6ad35}.el-year-table { font-size: 12px; margin: -1px; border-collapse: collapse}.el-year-table .el-icon { color: #2d2f33}.el-year-table td { text-align: center; padding: 20px 3px; cursor: pointer}.el-year-table td.disabled .cell { background-color: #f5f7fa; cursor: not-allowed; color: #b4bccc}.el-year-table td.disabled .cell:hover { color: #b4bccc}.el-year-table td .cell { color: #5a5e66; margin: 0 auto}.el-year-table td .cell:hover,.el-year-table td.current:not(.disabled) .cell { color: #f6ad35}.el-time-spinner.has-seconds .el-time-spinner__wrapper { width: 33.3%}.el-time-spinner.has-seconds .el-time-spinner__wrapper:nth-child(2) { margin-left: 1%}.el-time-spinner__wrapper { max-height: 190px; overflow: auto; display: inline-block; width: 50%; vertical-align: top; position: relative}.el-time-spinner__wrapper .el-scrollbar__wrap:not(.el-scrollbar__wrap--hidden-default) { padding-bottom: 15px}.el-time-spinner__wrapper.is-arrow { -webkit-box-sizing: border-box; box-sizing: border-box; text-align: center; overflow: hidden}.el-time-spinner__wrapper.is-arrow .el-time-spinner__list { -webkit-transform: translateY(-32px); transform: translateY(-32px)}.el-time-spinner__wrapper.is-arrow .el-time-spinner__item:hover:not(.disabled):not(.active) { background: #fff; cursor: default}.el-time-spinner__arrow { font-size: 12px; color: #878d99; position: absolute; left: 0; width: 100%; z-index: 1; text-align: center; height: 30px; line-height: 30px; cursor: pointer}.el-time-spinner__arrow:hover { color: #f6ad35}.el-time-spinner__arrow.el-icon-arrow-up { top: 10px}.el-time-spinner__arrow.el-icon-arrow-down { bottom: 10px}.el-time-spinner__input.el-input { width: 70%}.el-time-spinner__input.el-input .el-input__inner { padding: 0; text-align: center}.el-time-spinner__list { padding: 0; margin: 0; list-style: none; text-align: center}.el-time-spinner__list::after,.el-time-spinner__list::before { content: ''; display: block; width: 100%; height: 80px}.el-time-spinner__item { height: 32px; line-height: 32px; font-size: 12px; color: #5a5e66}.el-time-spinner__item:hover:not(.disabled):not(.active) { background: #f5f7fa; cursor: pointer}.el-time-spinner__item.active:not(.disabled) { color: #2d2f33; 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-webkit-transform-origin: center bottom; transform-origin: center bottom}.el-zoom-in-bottom-enter,.el-zoom-in-bottom-leave-active { opacity: 0; -webkit-transform: scaleY(0); transform: scaleY(0)}.el-zoom-in-left-enter-active,.el-zoom-in-left-leave-active { opacity: 1; -webkit-transform: scale(1,1); transform: scale(1,1); -webkit-transition: opacity .3s cubic-bezier(.23,1,.32,1) .1s,-webkit-transform .3s cubic-bezier(.23,1,.32,1) .1s; transition: opacity .3s cubic-bezier(.23,1,.32,1) .1s,-webkit-transform .3s cubic-bezier(.23,1,.32,1) .1s; transition: transform .3s cubic-bezier(.23,1,.32,1) .1s,opacity .3s cubic-bezier(.23,1,.32,1) .1s; transition: transform .3s cubic-bezier(.23,1,.32,1) .1s,opacity .3s cubic-bezier(.23,1,.32,1) .1s,-webkit-transform .3s cubic-bezier(.23,1,.32,1) .1s; -webkit-transform-origin: top left; transform-origin: top left}.el-zoom-in-left-enter,.el-zoom-in-left-leave-active { opacity: 0; -webkit-transform: scale(.45,.45); transform: scale(.45,.45)}.collapse-transition { -webkit-transition: .3s height ease-in-out,.3s padding-top ease-in-out,.3s padding-bottom ease-in-out; transition: .3s height ease-in-out,.3s padding-top ease-in-out,.3s padding-bottom ease-in-out}.horizontal-collapse-transition { -webkit-transition: .3s width ease-in-out,.3s padding-left ease-in-out,.3s padding-right ease-in-out; transition: .3s width ease-in-out,.3s padding-left ease-in-out,.3s padding-right ease-in-out}.el-list-enter-active,.el-list-leave-active { -webkit-transition: all 1s; transition: all 1s}.el-list-enter,.el-list-leave-active { opacity: 0; -webkit-transform: translateY(-30px); transform: translateY(-30px)}.el-opacity-transition { -webkit-transition: opacity .3s cubic-bezier(.55,0,.1,1); transition: opacity .3s cubic-bezier(.55,0,.1,1)}.el-date-editor { position: relative; display: inline-block; text-align: left}.el-date-editor.el-input,.el-date-editor.el-input__inner { width: 220px}.el-date-editor--daterange.el-input,.el-date-editor--daterange.el-input__inner,.el-date-editor--timerange.el-input,.el-date-editor--timerange.el-input__inner { width: 350px}.el-date-editor--datetimerange.el-input,.el-date-editor--datetimerange.el-input__inner { width: 400px}.el-date-editor .el-range__icon { font-size: 14px; margin-left: -5px; color: #b4bccc; float: left; line-height: 32px}.el-date-editor .el-range-input,.el-date-editor .el-range-separator { height: 100%; margin: 0; text-align: center; display: inline-block; font-size: 14px}.el-date-editor .el-range-input { -webkit-appearance: none; -moz-appearance: none; appearance: none; border: none; outline: 0; padding: 0; width: 39%; color: #5a5e66}.el-date-editor .el-range-input::-webkit-input-placeholder { color: #b4bccc}.el-date-editor .el-range-input:-ms-input-placeholder { color: #b4bccc}.el-date-editor .el-range-input::placeholder { color: #b4bccc}.el-date-editor .el-range-separator { padding: 0 5px; line-height: 32px; width: 5%; color: #2d2f33}.el-date-editor .el-range__close-icon { font-size: 14px; color: #b4bccc; width: 25px; display: inline-block; float: right; line-height: 32px}.el-range-editor.el-input__inner { padding: 3px 10px}.el-range-editor.is-active,.el-range-editor.is-active:hover { border-color: #f6ad35}.el-range-editor--medium.el-input__inner { height: 36px}.el-range-editor--medium .el-range-separator { line-height: 28px; font-size: 14px}.el-range-editor--medium .el-range-input { font-size: 14px}.el-range-editor--medium .el-range__close-icon,.el-range-editor--medium .el-range__icon { line-height: 28px}.el-range-editor--small.el-input__inner { height: 32px}.el-range-editor--small .el-range-separator { line-height: 24px; font-size: 13px}.el-range-editor--small .el-range-input { font-size: 13px}.el-range-editor--small .el-range__close-icon,.el-range-editor--small .el-range__icon { line-height: 24px}.el-range-editor--mini.el-input__inner { height: 28px}.el-range-editor--mini .el-range-separator { line-height: 20px; font-size: 12px}.el-range-editor--mini .el-range-input { font-size: 12px}.el-range-editor--mini .el-range__close-icon,.el-range-editor--mini .el-range__icon { line-height: 20px}.el-range-editor.is-disabled { background-color: #f5f7fa; border-color: #dfe4ed; color: #b4bccc; cursor: not-allowed}.el-range-editor.is-disabled:focus,.el-range-editor.is-disabled:hover { border-color: #dfe4ed}.el-range-editor.is-disabled input { background-color: #f5f7fa; color: #b4bccc; cursor: not-allowed}.el-range-editor.is-disabled input::-webkit-input-placeholder { color: #b4bccc}.el-range-editor.is-disabled input:-ms-input-placeholder { color: #b4bccc}.el-range-editor.is-disabled input::placeholder { color: #b4bccc}.el-range-editor.is-disabled .el-range-separator { color: #b4bccc}.el-picker-panel { color: #5a5e66; border: 1px solid #dfe4ed; -webkit-box-shadow: 0 2px 12px 0 rgba(0,0,0,.1); box-shadow: 0 2px 12px 0 rgba(0,0,0,.1); background: #fff; border-radius: 4px; line-height: 30px; margin: 5px 0}.el-picker-panel__body-wrapper::after,.el-picker-panel__body::after { content: ""; display: table; clear: both}.el-picker-panel__content { position: relative; margin: 15px}.el-picker-panel__footer { border-top: 1px solid #e4e4e4; padding: 4px; text-align: right; background-color: #fff; position: relative; font-size: 0}.el-picker-panel__shortcut { display: block; width: 100%; border: 0; background-color: transparent; line-height: 28px; font-size: 14px; color: #5a5e66; padding-left: 12px; text-align: left; outline: 0; cursor: pointer}.el-picker-panel__shortcut:hover { color: #f6ad35}.el-picker-panel__shortcut.active { background-color: #e6f1fe; color: #f6ad35}.el-picker-panel__btn { border: 1px solid #dcdcdc; color: #333; line-height: 24px; border-radius: 2px; padding: 0 20px; cursor: pointer; background-color: transparent; outline: 0; font-size: 12px}.el-picker-panel__btn[disabled] { color: #ccc; cursor: not-allowed}.el-picker-panel__icon-btn { font-size: 12px; color: #2d2f33; border: 0; background: 0 0; cursor: pointer; outline: 0; margin-top: 8px}.el-picker-panel__icon-btn:hover { color: #f6ad35}.el-picker-panel__icon-btn.is-disabled { color: #bbb}.el-picker-panel__icon-btn.is-disabled:hover { cursor: not-allowed}.el-picker-panel__link-btn { vertical-align: middle}.el-picker-panel .popper__arrow { -webkit-transform: translateX(-400%); transform: translateX(-400%)}.el-picker-panel [slot=sidebar],.el-picker-panel__sidebar { position: absolute; top: 0; bottom: 0; width: 110px; border-right: 1px solid #e4e4e4; -webkit-box-sizing: border-box; box-sizing: border-box; padding-top: 6px; background-color: #fff; overflow: auto}.el-picker-panel [slot=sidebar]+.el-picker-panel__body,.el-picker-panel__sidebar+.el-picker-panel__body { margin-left: 110px}.el-date-picker { width: 322px}.el-date-picker.has-sidebar.has-time { width: 434px}.el-date-picker.has-sidebar { width: 438px}.el-date-picker.has-time .el-picker-panel__body-wrapper { position: relative}.el-date-picker .el-picker-panel__content { width: 292px}.el-date-picker table { table-layout: fixed; width: 100%}.el-date-picker__editor-wrap { position: relative; display: table-cell; padding: 0 5px}.el-date-picker__time-header { position: relative; border-bottom: 1px solid #e4e4e4; font-size: 12px; padding: 8px 5px 5px; display: table; width: 100%; -webkit-box-sizing: border-box; box-sizing: border-box}.el-date-picker__header { margin: 12px; text-align: center}.el-date-picker__header--bordered { margin-bottom: 0; padding-bottom: 12px; border-bottom: solid 1px #e6ebf5}.el-date-picker__header--bordered+.el-picker-panel__content { margin-top: 0}.el-date-picker__header-label { font-size: 16px; font-weight: 500; padding: 0 5px; line-height: 22px; text-align: center; cursor: pointer; color: #5a5e66}.el-date-picker__header-label.active,.el-date-picker__header-label:hover { color: #f6ad35}.el-date-picker__prev-btn { float: left}.el-date-picker__next-btn { float: right}.el-date-picker__time-wrap { padding: 10px; text-align: center}.el-date-picker__time-label { float: left; cursor: pointer; line-height: 30px; margin-left: 10px}.el-date-range-picker { width: 646px}.el-date-range-picker.has-sidebar { width: 756px}.el-date-range-picker table { table-layout: fixed; width: 100%}.el-date-range-picker .el-picker-panel__body { min-width: 513px}.el-date-range-picker .el-picker-panel__content { margin: 0}.el-date-range-picker__header { position: relative; text-align: center; height: 28px}.el-date-range-picker__header [class*=arrow-left] { float: left}.el-date-range-picker__header [class*=arrow-right] { float: right}.el-date-range-picker__header div { font-size: 16px; font-weight: 500; margin-right: 50px}.el-date-range-picker__content { float: left; width: 50%; -webkit-box-sizing: border-box; box-sizing: border-box; margin: 0; padding: 16px}.el-date-range-picker__content.is-left { border-right: 1px solid #e4e4e4}.el-date-range-picker__content.is-right .el-date-range-picker__header div { margin-left: 50px; margin-right: 50px}.el-date-range-picker__editors-wrap { -webkit-box-sizing: border-box; box-sizing: border-box; display: table-cell}.el-date-range-picker__editors-wrap.is-right { text-align: right}.el-date-range-picker__time-header { position: relative; border-bottom: 1px solid #e4e4e4; font-size: 12px; padding: 8px 5px 5px; display: table; width: 100%; -webkit-box-sizing: border-box; box-sizing: border-box}.el-date-range-picker__time-header>.el-icon-arrow-right { font-size: 20px; vertical-align: middle; display: table-cell; color: #2d2f33}.el-date-range-picker__time-picker-wrap { position: relative; display: table-cell; padding: 0 5px}.el-date-range-picker__time-picker-wrap .el-picker-panel { position: absolute; top: 13px; right: 0; z-index: 1; background: #fff}.el-time-range-picker { width: 354px; overflow: visible}.el-time-range-picker__content { position: relative; text-align: center; padding: 10px}.el-time-range-picker__cell { -webkit-box-sizing: border-box; box-sizing: border-box; margin: 0; padding: 4px 7px 7px; width: 50%; display: inline-block}.el-time-range-picker__header { margin-bottom: 5px; text-align: center; font-size: 14px}.el-time-range-picker__body { border-radius: 2px; border: 1px solid #dfe4ed}.el-time-panel { margin: 5px 0; border: 1px solid #dfe4ed; background-color: #fff; -webkit-box-shadow: 0 2px 12px 0 rgba(0,0,0,.1); box-shadow: 0 2px 12px 0 rgba(0,0,0,.1); border-radius: 2px; position: absolute; width: 180px; left: 0; z-index: 1000; -webkit-user-select: none; -moz-user-select: none; -ms-user-select: none; user-select: none}.el-time-panel__content { font-size: 0; position: relative; overflow: hidden}.el-time-panel__content::after,.el-time-panel__content::before { content: ""; 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