提交初始版本，使用vant ui库

miniprogram_npm/@vant/weapp/picker/shared.d.ts

@@ -0,0 +1,21 @@
+export declare const pickerProps: {
+    title: StringConstructor;
+    loading: BooleanConstructor;
+    showToolbar: BooleanConstructor;
+    cancelButtonText: {
+        type: StringConstructor;
+        value: string;
+    };
+    confirmButtonText: {
+        type: StringConstructor;
+        value: string;
+    };
+    visibleItemCount: {
+        type: NumberConstructor;
+        value: number;
+    };
+    itemHeight: {
+        type: NumberConstructor;
+        value: number;
+    };
+};