cjd-parkball/src/components/grid/demo/playground.md

> 中后台业务组件库，中后台就像公园，进入需要买门票（登录），所以以 Parkball(公园球) 命名，公园内必定捕获！作为一个组件库，提供使用方法文档，方便开发者的调用

---
category: 2
title: 栅格配置器
title_en: Playground
---

 zh-CN

可以简单配置几种等分栅格和间距。

 en-US

A simple playground for column count and gutter.

````jsx
import { Row, Col, Slider } from 'parkball';

class App extends React.Component {
  gutters = {};

  colCounts = {};

  constructor() {
    super();
    this.state = {
      gutterKey: 1,
      colCountKey: 2,
    };
    [8, 16, 24, 32, 40, 48].forEach((value, i) => { this.gutters[i] = value; });
    [2, 3, 4, 6, 8, 12].forEach((value, i) => { this.colCounts[i] = value; });
  }

  onGutterChange = (gutterKey) => {
    this.setState({ gutterKey });
  }

  onColCountChange = (colCountKey) => {
    this.setState({ colCountKey });
  }

  render() {
    const { gutterKey, colCountKey } = this.state;
    const cols = [];
    const colCount = this.colCounts[colCountKey];
    let colCode = '';
    for (let i = 0; i < colCount; i++) {
      cols.push(
        <Col key={i.toString()} span={24 / colCount}>
          <div>Column</div>
        </Col>
      );
      colCode += `  <Col span={${24 / colCount}} />\n`;
    }
    return (
      <div>
        <div style={{ marginBottom: 16 }}>
          <span style={{ marginRight: 6 }}>Gutter (px): </span>
          <div style={{ width: '50%' }}>
            <Slider
              min={0}
              max={Object.keys(this.gutters).length - 1}
              value={gutterKey}
              onChange={this.onGutterChange}
              marks={this.gutters}
              step={null}
            />
          </div>
          <span style={{ marginRight: 6 }}>Column Count:</span>
          <div style={{ width: '50%' }}>
            <Slider
              min={0}
              max={Object.keys(this.colCounts).length - 1}
              value={colCountKey}
              onChange={this.onColCountChange}
              marks={this.colCounts}
              step={null}
            />
          </div>
        </div>
        <Row gutter={this.gutters[gutterKey]}>{cols}</Row>
        <pre>{`<Row gutter={${this.gutters[gutterKey]}}>\n${colCode}</Row>`}</pre>
      </div>
    );
  }
}

ReactDOM.render(<App />, mountNode);
````

````css
#components-grid-demo-playground [class^="ant-col-"] {
  background: transparent;
  border: 2;
}
#components-grid-demo-playground [class^="ant-col-"] > div {
  background: #00A0E9;
  height: 120px;
  line-height: 120px;
  font-size: 13px;
}
#components-grid-demo-playground pre {
  background: #f9f9f9;
  border-radius: 6px;
  font-size: 13px;
  padding: 8px 16px;
}
````