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app/components/countDown/index.vue

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+<template>
+	<view class="time" :style="justifyLeft">
+		<text class="red" v-if="tipText">{{ tipText }}</text>
+		<text class="styleAll" v-if="isDay === true">{{ day }}</text>
+		<text class="timeTxt red" v-if="dayText">{{ dayText }}</text>
+		<text class="styleAll">{{ hour }}</text>
+		<text class="timeTxt red" v-if="hourText">{{ hourText }}</text>
+		<text class="styleAll">{{ minute }}</text>
+		<text class="timeTxt red" v-if="minuteText">{{ minuteText }}</text>
+		<text class="styleAll">{{ second }}</text>
+		<text class="timeTxt red" v-if="secondText">{{ secondText }}</text>
+	</view>
+</template>
+
+<script>
+	export default {
+		name: "countDown",
+		props: {
+			justifyLeft: {
+				type: String,
+				default: ""
+			},
+			//距离开始提示文字
+			tipText: {
+				type: String,
+				default: "倒计时"
+			},
+			dayText: {
+				type: String,
+				default: "天"
+			},
+			hourText: {
+				type: String,
+				default: "时"
+			},
+			minuteText: {
+				type: String,
+				default: "分"
+			},
+			secondText: {
+				type: String,
+				default: "秒"
+			},
+			datatime: {
+				type: Number,
+				default: 0
+			},
+			isDay: {
+				type: Boolean,
+				default: true
+			}
+		},
+		data: function() {
+			return {
+				day: "00",
+				hour: "00",
+				minute: "00",
+				second: "00"
+			};
+		},
+		created: function() {
+			this.show_time();
+		},
+		mounted: function() {},
+		methods: {
+			show_time: function() {
+				let that = this;
+
+				function runTime() {
+					//时间函数
+					let intDiff = that.datatime - Date.parse(new Date()) / 1000; //获取数据中的时间戳的时间差；
+					let day = 0,
+						hour = 0,
+						minute = 0,
+						second = 0;
+					if (intDiff > 0) {
+						//转换时间
+						if (that.isDay === true) {
+							day = Math.floor(intDiff / (60 * 60 * 24));
+						} else {
+							day = 0;
+						}
+						hour = Math.floor(intDiff / (60 * 60)) - day * 24;
+						minute = Math.floor(intDiff / 60) - day * 24 * 60 - hour * 60;
+						second =
+							Math.floor(intDiff) -
+							day * 24 * 60 * 60 -
+							hour * 60 * 60 -
+							minute * 60;
+						if (hour <= 9) hour = "0" + hour;
+						if (minute <= 9) minute = "0" + minute;
+						if (second <= 9) second = "0" + second;
+						that.day = day;
+						that.hour = hour;
+						that.minute = minute;
+						that.second = second;
+					} else {
+						that.day = "00";
+						that.hour = "00";
+						that.minute = "00";
+						that.second = "00";
+					}
+				}
+				runTime();
+				setInterval(runTime, 1000);
+			}
+		}
+	};
+</script>
+
+<style>
+	.time{
+		display: flex;
+		justify-content: center;
+	} 
+	.red{
+		color: #fc4141;
+		margin: 0 4rpx;
+	}
+</style>