// 需要先在Google Cloud Platform创建项目并启用Custom Search JSON API
const API_KEY = 'YOUR_API_KEY';
const CX = 'YOUR_CUSTOM_SEARCH_ENGINE_ID';
const query = 'cats';

$.getJSON(
  `https://www.googleapis.com/customsearch/v1?q=${query}&key=${API_KEY}&cx=${CX}&searchType=image`,
  function(data) {
    if (data.items) {
      data.items.forEach(function(item) {
        console.log(item.link); // 图片URL
      });
    }
  }
);

// 前端代码
$.getJSON('/api/google-images?q=cats', function(data) {
  console.log(data);
});

// 后端Node.js示例
const express = require('express');
const axios = require('axios');
const app = express();

app.get('/api/google-images', async (req, res) => {
  try {
    const response = await axios.get('https://www.googleapis.com/customsearch/v1', {
      params: {
        q: req.query.q,
        key: 'YOUR_API_KEY',
        cx: 'YOUR_CUSTOM_SEARCH_ENGINE_ID',
        searchType: 'image'
      }
    });
    res.json(response.data);
  } catch (error) {
    res.status(500).json({ error: error.message });
  }
});