uview-plus组件库全面升级更新，订单结算判断支付方式是否可用代码调整，公众号关注二维码修改

uni_modules/uview-plus/components/u-pdf-reader/props.js

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+export default {
+    props: {
+        // PDF文件地址
+        src: {
+            type: String,
+            default: ''
+        },
+        // 组件高度
+        height: {
+            type: String,
+            default: '500px'
+        },
+        // pdfjs资源域名
+        baseUrl: {
+            type: String,
+            default: 'https://uview-plus.jiangruyi.com/h5'
+        }
+    }
+}

uni_modules/uview-plus/components/u-pdf-reader/u-pdf-reader.vue

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+<template>
+	<view class="up-pdf-reader" :style="{ height: height }">
+		<web-view :fullscreen="false"
+			:src="viewerUrl" :style="{ width: '750rpx', height: height }"
+            :webview-styles="{ width: '750rpx', height: height }"
+			frameborder="0"
+		></web-view>
+	</view>
+</template>
+
+<script>
+	import props from './props.js';
+
+	/**
+	 * pdfReader PDF阅读器
+	 * @description 基于pdf.js的PDF阅读器组件
+	 * @tutorial https://uview-plus.jiangruyi.com/components/pdfReader.html
+	 * @property {String}			src				PDF文件地址
+	 * @property {String}	        height			组件高度，默认为'700px'
+	 * @property {String}			pdfjsDomain		pdfjs资源域名，默认为'https://uview-plus.jiangruyi.com/h5'
+	 * @example <up-pdf-reader src="https://example.com/file.pdf"></up-pdf-reader>
+	 */
+	export default {
+		name: 'up-pdf-reader',
+		mixins: [props],
+        data() {
+            return {
+                baseUrlInner: 'https://uview-plus.jiangruyi.com/h5',
+                viewerUrl: ''
+            }
+        },
+        watch: {
+            baseUrl: function (val) {
+                this.baseUrl = val;
+            },
+            src: function (val) {
+                this.viewerUrl = `${this.baseUrlInner}/static/pdfjs/web/viewer.html?file=` + encodeURIComponent(val);
+            }
+        },
+        mounted() {
+            if (this.baseUrl) {
+                this.baseUrlInner = this.baseUrl;
+            }
+            this.viewerUrl = `${this.baseUrlInner}/static/pdfjs/web/viewer.html?file=` + encodeURIComponent(this.src);
+		}
+	}
+</script>
+
+<style lang="scss" scoped>	
+	.up-pdf-reader {
+	}
+</style>