可以使用async/await结合Promise.all()来实现按顺序调用异步函数，并在全部完成后进行加载。示例代码如下：

async function loadAsyncFunctionsInOrder() { const results = []; results.push(await asyncFunction1()); results.push(await asyncFunction2()); results.push(await asyncFunction3()); console.log('All functions completed', results); }

function asyncFunction1() { return new Promise((resolve, reject) => { setTimeout(() => { resolve('Async Function 1 Completed'); }, 2000); }); }

function asyncFunction2() { return new Promise((resolve, reject) => { setTimeout(() => { resolve('Async Function 2 Completed'); }, 1000); }); }

function asyncFunction3() { return new Promise((resolve, reject) => { setTimeout(() => { resolve('Async Function 3 Completed'); }, 3000); }); }

loadAsyncFunctionsInOrder();

在这个例子中，loadAsyncFunctionsInOrder()函数会异步地执行asyncFunction1()、asyncFunction2()、asyncFunction3()函数，并将返回的结果存储在一个数组中。然后，用console.log()方法打印出所有函数都完成后返回的结果。如果在执行某个异步函数时发生错误，可以通过try/catch来捕捉错误并进行处理。