ant-design/components/button/demo/loading.md

order	title
4	zh-CN en-US 加载中状态 Loading

zh-CN

添加 loading 属性即可让按钮处于加载状态，最后两个按钮演示点击后进入加载状态。

en-US

A loading indicator can be added to a button by setting the loading property on the Button.

import React, { useEffect, useState, useRef } from 'react';
import { Button, Space } from 'antd';
import { PoweroffOutlined } from '@ant-design/icons';

export default () => {
  const [loadings, setLoadings] = useState([]);

  const enterLoading = index => {
    setLoadings(prevLoadings => {
      const newLoadings = [...prevLoadings];
      newLoadings[index] = true;
      return newLoadings;
    });

    setTimeout(() => {
      setLoadings(prevLoadings => {
        const newLoadings = [...prevLoadings];
        newLoadings[index] = false;
        return newLoadings;
      });
    }, 6000);
  };

  return (
    <>
      <Space style={{ width: '100%' }}>
        <Button type="primary" loading>
          Loading
        </Button>
        <Button type="primary" size="small" loading>
          Loading
        </Button>
        <Button type="primary" icon={<PoweroffOutlined />} loading />
      </Space>

      <Space style={{ width: '100%' }}>
        <Button type="primary" loading={loadings[0]} onClick={() => enterLoading(0)}>
          Click me!
        </Button>
        <Button
          type="primary"
          icon={<PoweroffOutlined />}
          loading={loadings[1]}
          onClick={() => enterLoading(1)}
        >
          Click me!
        </Button>
        <Button
          type="primary"
          icon={<PoweroffOutlined />}
          loading={loadings[2]}
          onClick={() => enterLoading(2)}
        />
      </Space>
    </>
  );
};