初始化（包含登录模块）

pages/API/show-loading/show-loading.vue

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+<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>