first commit

滴滴淘/admin/src/components/loading/loading.tsx

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+import React, { Component } from 'react';
+import { Spin } from 'antd';
+
+const style = {
+  height: '100%',
+  width: '100%',
+  display: 'flex',
+  alignItems: 'center',
+  justifyContent: 'center',
+};
+
+class Loading extends Component {
+  render() {
+    return (
+      <div style={style}>
+        <Spin size="large" />
+      </div>
+    );
+  }
+}
+
+export default Loading;