提交初始版本，使用vant ui库

miniprogram_npm/@vant/weapp/picker/shared.js

@@ -0,0 +1,24 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.pickerProps = void 0;
+exports.pickerProps = {
+    title: String,
+    loading: Boolean,
+    showToolbar: Boolean,
+    cancelButtonText: {
+        type: String,
+        value: '取消',
+    },
+    confirmButtonText: {
+        type: String,
+        value: '确认',
+    },
+    visibleItemCount: {
+        type: Number,
+        value: 6,
+    },
+    itemHeight: {
+        type: Number,
+        value: 44,
+    },
+};