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-title/u-title.vue

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+<style scoped lang="scss">
+    .u-title {
+		.u-title-prefix {
+		    width: 4px;
+		    height: 18px;
+		    border-radius: 2px;
+		    background: $u-primary;
+		    margin-right: 12px;
+		    margin-right :10px;
+		}
+    }
+</style>
+<template>
+    <view class="u-title u-flex-row u-flex-y-center">
+        <slot name="prefix">
+            <view class="u-title-prefix">
+            </view>
+        </slot>
+        <slot></slot>
+    </view>
+</template>
+<script>
+export default {
+    name: 'u-title',
+    props: {
+    },
+    data() {
+        return {
+        }
+    },
+    created: function () {
+    },
+    methods: {
+    }
+}
+</script>