请教有关于这段代码的两个问题

cpu 问题：首先for{} 本身就非常消耗cpu，正常情况下 ，如下代码，cpu可以达到99%，你的使用率是百分之20

for{
    fmt.Println("ss")
}

我理解为你的for循环中代码的作用应该做了大量计算或者其它，要想再提高，可以考虑分治，将这段代码并发多个gorouting执行

保存文件问题: 你可以将执行结果不再打印，而是放入一个channel中，有一个gorouting会不断得从channel中获取结果然后写入文件

package main

import (
    "fmt"
    "math/big"
    "os"

    "github.com/btcsuite/btcd/btcec"
    "github.com/btcsuite/btcd/chaincfg"
    "github.com/btcsuite/btcutil"
)

func main() {
    // Multi-core processor
    // runtime.GOMAXPROCS(12)

    // Initialise big numbers with small numbers
    count, one := new(big.Int), big.NewInt(1)
    count.SetString("25194206377246025674054756204990322111942063772460256740547562051757470", 10)

    file, _ := os.Create("out.txt")
    // Create a slice to pad our count to 32 bytes
    padded := make([]byte, 32)
    limit := 1 << 4
    jops := make(chan *big.Int, 2*limit)
    for i := 0; i < limit; i++ {
        go worker(jops, padded, file)
    }
    // Loop forever because we're never going to hit the end anyway
    for {
        // Increment our counter
        count.Add(count, one)
        jops <- count
    }
}

func worker(jops <-chan *big.Int, padded []byte, file *os.File) {
    for count := range jops {
        // Copy count value's bytes to padded slice
        copy(padded[32-len(count.Bytes()):], count.Bytes())
        // Get public key
        _, public := btcec.PrivKeyFromBytes(btcec.S256(), padded)
        // Get compressed and uncompressed addresses
        caddr, _ := btcutil.NewAddressPubKey(public.SerializeCompressed(), &chaincfg.MainNetParams)
        uaddr, _ := btcutil.NewAddressPubKey(public.SerializeUncompressed(), &chaincfg.MainNetParams)
        // Print keys
        row := fmt.Sprintf("%x\n%34s\n%34s\n", padded, uaddr.EncodeAddress(), caddr.EncodeAddress())
        fmt.Print(row)
        fmt.Fprint(file, row)
    }
}