如下打印结果是什么 async function async1() { console.log('async1 start'); await async2(); console.log('async1 end'); } async function async2() { console.log('async2'); }
console.log('script start');
setTimeout(function() {
console.log('setTimeout');
}, 0);
async1();
new Promise(function(resolve) {
console.log('promise1');
resolve();
}).then(function() {
console.log('promise2');
});
console.log('script end');
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