| 12345678910111213141516171819202122232425262728293031323334353637383940414243444546474849 | <template>	<view>		<page-head :title="title"></page-head>		<view class="uni-padding-wrap">			<view class="uni-btn-v">				<button class="btn-load" type="primary" @click="showLoading">显示 loading 提示框</button>				<!-- #ifndef MP-ALIPAY -->				<button @click="hideLoading">隐藏 loading 提示框</button>				<!-- #endif -->			</view>		</view>	</view></template><script>	export default {		data() {			return {				title: 'loading'			}		},		methods: {			showLoading: function() {				uni.showLoading({					title: 'loading'				});				// #ifdef MP-ALIPAY				this._showTimer && clearTimeout(this._showTimer);				this._showTimer = setTimeout(() => {					this.hideLoading();				}, 3000)				// #endif			},			hideLoading: function() {				uni.hideLoading();			}		}		// #ifdef MP-ALIPAY		,		onUnload() {			this._showTimer && clearTimeout(this._showTimer);		}		// #endif	}</script><style></style>
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