pages/zone/index.vue
..
..
@@ -20,8 +20,9 @@
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 		<view v-else>
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 			<view class="expireTime" v-if="expireTime && expireTime.length">
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 				<text>专区将在</text>
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-				<text v-for="(val, index) in expireTime" :key="index">
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-					<text class="num">{{ val }}</text>{{ expireTimeUnit[index] }}
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+				<text v-for="(item, index) in expireTime" :key="index">
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+					<text class="num"><text v-for="(char, ci) in item.digits" :key="ci"
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+							class="digit">{{ char }}</text></text>{{ item.unit }}
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 				</text>
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 				<text>{{ startOrEnd }}</text>
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 			</view>
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@@ -606,7 +607,7 @@
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 			showMenu: false,
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 			selectedMenuArr: [],
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 			expireTime: [],
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-			expireTimeUnit: [],
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+			countdownToken: 0,
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 			isPageShow: false,
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 			loginBackFn: null,
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 			errText: '',
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@@ -1326,6 +1327,9 @@
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 			})
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 		},
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 		validAlert(data) {
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+			// 每次重新计算前作废旧的倒计时链，避免多条定时器同时刷新导致数字跳动
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+			this.countdownToken++
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+			const token = this.countdownToken
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 			const {
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 				startTime,
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 				expireTime
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@@ -1344,17 +1348,17 @@
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 					let minutes = startTimetamp.getMinutes()
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 					minutes = minutes < 10 ? '0' + minutes : minutes;
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-					this.countdownTimer(startTime.split('-').join('/'), 'start')
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+					this.countdownTimer(startTime.split('-').join('/'), 'start', token)
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 					this.startOrEnd = "后开启"
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 					return
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-				}
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-			}
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-			if (expireTime) {
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-				const expireTimetamp = new Date(expireTime.split('-').join('/')).getTime();
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-				if (expireTimetamp < nowTimestamp) {
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+					}
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+					}
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+					if (expireTime) {
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+					const expireTimetamp = new Date(expireTime.split('-').join('/')).getTime();
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+					if (expireTimetamp < nowTimestamp) {
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 					return
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-				}
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-				this.countdownTimer(expireTime.split('-').join('/'), 'end')
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+					}
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+					this.countdownTimer(expireTime.split('-').join('/'), 'end', token)
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 				this.startOrEnd = "后结束"
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 			}
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 		},
..
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@@ -1493,7 +1497,7 @@
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 						that.homeTop = that.getHomeTop(0.4)
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 					}
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 					that.expireTime = [];
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-					that.expireTimeUnit = [];
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+					that.countdownToken++;
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 					that.where.page = 1;
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 					that.getGoodList()
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 					that.validAlert(res.data)
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@@ -1519,8 +1523,9 @@
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 				}
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 			});
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 		},
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-		countdownTimer(expireTime, type) {
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+		countdownTimer(expireTime, type, token) {
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 			if (!expireTime) return
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+			if (token !== undefined && token !== this.countdownToken) return
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 			let that = this;
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 			// 结束时间的时间戳（需传入一个有效的日期对象或时间戳）
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 			const endTimestamp = new Date(expireTime).getTime();
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@@ -1532,56 +1537,56 @@
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 			if (type == 'end') {
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 				if (diff <= 0) {
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 					this.expireTime = []
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-					this.expireTimeUnit = []
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 					return
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 				} else { }
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 			} else if (type == 'start') {
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 				if (diff <= 0) {
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 					this.expireTime = []
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-					this.expireTimeUnit = []
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 					const expireTime2 = that.info.expireTime
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 					if (expireTime2) {
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 						const expireTimetamp = new Date(expireTime2.split('-').join('/')).getTime();
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 						if (expireTimetamp < nowTimestamp) {
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 							return
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 						}
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-						this.countdownTimer(expireTime2.split('-').join('/'), 'end')
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+						this.countdownTimer(expireTime2.split('-').join('/'), 'end', token)
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 						this.startOrEnd = "后结束"
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 					}
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 					return
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 				}
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 			}
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+			const pad = num => (num < 10 ? '0' + num : String(num))
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 			const res = []
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-			const unit = []
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 			const days = Math.floor(diff / (1000 * 60 * 60 * 24))
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 			diff %= (1000 * 60 * 60 * 24)
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-			if (days > 0) {
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-				res.push(days);
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-				unit.push('日')
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-			}
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 			// 转换为小时、分钟、秒
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 			const hours = Math.floor(diff / (1000 * 60 * 60));
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 			diff %= (1000 * 60 * 60); // 剩余毫秒数
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-			if (hours > 0) {
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-				res.push(hours < 10 ? '0' + hours : hours);
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-				unit.push('时')
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-			}
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 			const minutes = Math.floor(diff / (1000 * 60));
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-			if (minutes > 0) {
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-				res.push(minutes < 10 ? '0' + minutes : minutes);
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-				unit.push('分')
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-			}
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 			diff %= (1000 * 60); // 剩余毫秒数
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 			const seconds = Math.floor(diff / 1000);
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-			if (seconds > 0) {
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-				res.push(seconds < 10 ? '0' + seconds : seconds);
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-				unit.push('秒')
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+			// 天数为 0 时不展示，时/分/秒始终展示（补 0），保证倒计时长度稳定
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+			if (days > 0) {
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+				res.push({
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+					digits: pad(days).split(''),
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+					unit: '日'
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+				})
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 			}
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+			res.push({
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+				digits: pad(hours).split(''),
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+				unit: '时'
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+			})
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+			res.push({
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+				digits: pad(minutes).split(''),
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+				unit: '分'
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+			})
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+			res.push({
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+				digits: pad(seconds).split(''),
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+				unit: '秒'
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+			})
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 			this.expireTime = res
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-			this.expireTimeUnit = unit
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 			if (this.isPageShow) {
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 				setTimeout(() => {
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-					that.countdownTimer(expireTime, type)
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+					that.countdownTimer(expireTime, type, token)
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 				}, 1000)
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 			}
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 		},
..
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@@ -2156,11 +2161,22 @@
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 	padding: 15rpx;
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 	padding-left: 30rpx;
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 	color: #979797;
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+	font-size: 26rpx;
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 	.num {
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+		display: inline-block;
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 		color: #000000;
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 		background: #FFE20E;
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-		padding: 0 10rpx;
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+		padding: 0 6rpx;
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+		margin: 0 4rpx;
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+		vertical-align: middle;
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+	}
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+
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+	/* 每个数字固定宽度，避免倒计时跳动时宽度忽长忽短 */
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+	.digit {
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+		display: inline-block;
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+		width: 19rpx;
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+		text-align: center;
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 	}
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 }
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 </style>