js class 静态变量

class MyClass {
  static myStaticVariable = 'This is a static variable';

  constructor() {
    this.myInstanceVariable = 'This is an instance variable';
  }
}

console.log(MyClass.myStaticVariable); // 输出: This is a static variable

class Counter {
  static count = 0;

  constructor() {
    Counter.count++;
  }

  static getCount() {
    return Counter.count;
  }
}

const counter1 = new Counter();
const counter2 = new Counter();

console.log(Counter.getCount()); // 输出: 2

// sharedState.js
export const sharedVariable = 'Shared Value';

// file1.js
import { sharedVariable } from './sharedState.js';
console.log(sharedVariable); // 输出: Shared Value

// file2.js
import { sharedVariable } from './sharedState.js';
console.log(sharedVariable); // 输出: Shared Value