如何处理Go语言中的并发任务的容错和故障恢复问题？

package main

import "fmt"

func worker(id int, jobs <-chan int, results chan<- int) {
    for j := range jobs {
        fmt.Println("Worker", id, "started job", j)
        // 模拟可能出现的异常
        if j%2 == 0 {
            panic("Oops! Something went wrong.")
        }
        fmt.Println("Worker", id, "completed job", j)
        // 将结果发送给结果通道
        results <- j * 2
    }
}

func main() {
    const numJobs = 5
    // 创建任务和结果通道
    jobs := make(chan int, numJobs)
    results := make(chan int, numJobs)

    // 启动3个工作goroutine
    for w := 1; w <= 3; w++ {
        go worker(w, jobs, results)
    }

    // 发送任务到任务通道
    for j := 1; j <= numJobs; j++ {
        jobs <- j
    }
    close(jobs)

    // 等待所有结果返回并处理异常
    for a := 1; a <= numJobs; a++ {
        select {
        case result := <-results:
            fmt.Println("Result:", result)
        case err := <-panicChan:
            fmt.Println("Error:", err)
        }
    }
}

package main

import (
    "fmt"
    "time"
)

func worker(job int) error {
    // 模拟可能发生的故障
    if job%3 == 0 {
        return fmt.Errorf("Oops! Something went wrong with job %d", job)
    }
    fmt.Printf("Completed job %d
", job)
    return nil
}

func main() {
    const numJobs = 5
    const maxRetry = 3

    for j := 1; j <= numJobs; j++ {
        fmt.Printf("Processing job %d
", j)
        for r := 1; r <= maxRetry; r++ {
            err := worker(j)
            if err == nil {
                break
            }
            fmt.Printf("Retrying job %d (attempt: %d)
", j, r)
            time.Sleep(time.Second)
        }
    }
}