尝试使用[]获取参数值

// 获取URL中的参数值
function getParameterValue(parameterName) {
  const urlParams = new URLSearchParams(window.location.search);
  return urlParams.get(parameterName);
}

// 示例使用
const parameterValue = getParameterValue("param");
console.log(parameterValue);

from flask import Flask, request

app = Flask(__name__)

@app.route('/example')
def example():
    parameter_value = request.args.get('param')
    return parameter_value

if __name__ == '__main__':
    app.run()