const myPromise = new Promise((resolve, reject) => {
    const success = Math.random() > 0.5; // 隨機(jī)決定是成功還是失敗
    if (success) {
        resolve("操作成功!");
    } else {
        reject("操作失敗!");
    }
});

// 使用Promise
myPromise
    .then(result => {
        console.log(result);
    })
    .catch(error => {
        console.error(error);
    });

function asyncOperation() {
    return new Promise((resolve, reject) => {
        const errorOccurred = true; // 設(shè)置為true表示錯(cuò)誤發(fā)生
        if (errorOccurred) {
            reject("異步操作中的錯(cuò)誤!");
        } else {
            resolve("異步操作成功!");
        }
    });
}

asyncOperation()
    .then(result => {
        console.log(result);
    })
    .catch(error => {
        console.error("捕獲到錯(cuò)誤:", error);
    });

function firstPromise() {
    return new Promise((resolve, reject) => {
        resolve("第一個(gè)Promise成功!");
    });
}

function secondPromise() {
    return new Promise((resolve, reject) => {
        reject("第二個(gè)Promise失敗!");
    });
}

firstPromise()
    .then(result => {
        console.log(result);
        return secondPromise();
    })
    .then(result => {
        console.log(result);
    })
    .catch(error => {
        console.error("鏈?zhǔn)秸{(diào)用中捕獲到錯(cuò)誤:", error);
    });

const promise1 = Promise.resolve("第一個(gè)Promise");
const promise2 = Promise.reject("第二個(gè)Promise失敗!");
const promise3 = Promise.resolve("第三個(gè)Promise");

Promise.all([promise1, promise2, promise3])
    .then(results => {
        console.log("所有Promise成功:", results);
    })
    .catch(error => {
        console.error("捕獲到錯(cuò)誤:", error);
    });

async function asyncFunction() {
    try {
        const result1 = await firstPromise();
        console.log(result1); // 第一個(gè)Promise成功!
        
        const result2 = await secondPromise(); // 這里將拋出錯(cuò)誤
        console.log(result2);
    } catch (error) {
        console.error("在異步函數(shù)中捕獲到錯(cuò)誤:", error);
    }
}

asyncFunction();