你知道一台家用电脑挖比特币需要多久才能挖到一枚吗？
如今大家对比特币并不陌生，比特币从2017年年底登顶2万美元后，2018年踏上了漫漫熊途，但多次未有效跌破年内低点6000美元大关，截止发文一枚比特币价格6400美元。虽然，比特币已跌去将近70%，但是，换算下来一枚比特币也价值不菲，需要3万多人民币。简单说比特币就是个人用自己的计算机通过特定的算法计算出来的，那么，一台家用电脑每天24小时开机挖矿，需要多久能挖到一枚比特币呢？
所谓挖矿，就是维护比特币网络的一种奖励机制，矿工每十分钟处理一次这段时间内新产生的交易信息，同时必须完成一道非常非常难的题目，只有成功找到答案的矿工，才能提交新生成的区块，获得奖励。
比特币毕竟是程序运算的产物，理论上大家的电脑上只要安装了相应的软件就可以进行挖掘了。那么，一台家用电脑每天24小时开机挖矿，需要多久能挖到一枚比特币呢？
其实，比特币挖矿就是寻找一个输入X，使得X+交易信息的哈希值的前N位字符是0，N越大难度越大。所以我们常常讨论的算力，就是每秒可以计算多少次的哈希，1H/s = 每秒一次哈希碰撞。
如今比特币全网算力已达到每秒300万万亿次哈希碰撞。而一台家用电脑就算是顶配，其每秒算力也就1000H/s。按照矿机每天运行24个小时可以挖出0.0018个比特币来计算，也需要556天才可以挖出一枚比特币。当然，这还是理想状态。比特币的总量只有2100万枚，每年的产量都会减半一次，到2040年比特币的数量将不会再增加，从现在开始逐年的获取难度会越来越大。
那么，挖一枚比特币需要多少成本？
按照矿机每天运行24个小时可以挖出0.0018个比特币来计算，556天可以挖出一枚比特币。按矿机功率为1350瓦算，每小时约用一度电，每天电费16.8元。也就是说，挖到一枚比特币要花费9367元电费。
不过在这里要提醒大家两点：1、比特币的软件是英文版的，大家需要有一定的英语基础；2、比特币的挖掘会越来越难，相应的对电脑硬件的要求也越来越高，所以如果你的电脑处理速度跟不上，那简直就是浪费时间，几乎是挖不到的噢！
{"weixin":{"label":"微信","name":"weixin","selected":true,"value":true,"sortid":"1","shareid":"weixin","sharetitle":"分享到微信","event":"shareToWeiXin","lang":"shareWeb_WeiXin"},"copy":{"label":"复制网址","name":"copy","selected":true,"value":true,"sortid":"2","shareid":"copy","sharetitle":"复制网址","event":"copy_url","lang":"shareWeb_Copy"},"qq":{"label":"QQ好友","name":"qq","selected":true,"value":false,"sortid":"1","shareid":"qq","sharetitle":"分享到QQ","event":"shareToQQ","lang":"shareWeb_QQ"},"sina_weibo":{"label":"新浪微博","name":"sina_weibo","selected":true,"value":true,"sortid":"4","shareid":"sina_weibo","sharetitle":"分享到新浪微博","event":"shareToSinaWB","lang":"shareWeb_SinaWeiBo"},"qq_zone":{"label":"QQ空间","name":"qq_zone","selected":true,"value":true,"sortid":"5","shareid":"qq_zone","sharetitle":"分享到QQ空间","event":"shareToQzone","lang":"shareWeb_QQZone"},"renren":{"label":"人人网","name":"renren","selected":true,"value":true,"sortid":"7","shareid":"renren","sharetitle":"分享到人人网","event":"shareToRenren","lang":"shareWeb_RenRen"},"douban":{"label":"豆瓣网","name":"douban","selected":true,"value":true,"sortid":"8","shareid":"douban","sharetitle":"分享到豆瓣网","event":"shareToDouban","lang":"shareWeb_DouBan"},"baidu_tieba":{"label":"百度贴吧","name":"baidu_tieba","selected":true,"value":true,"sortid":"10","shareid":"baidu_tieba","sharetitle":"分享到百度贴吧","event":"shareToTieba","lang":"shareWeb_TieBa"},"Facebook":{"label":"Facebook","name":"Facebook","selected":true,"value":true,"sortid":"11","shareid":"Facebook","sharetitle":"分享到FaceBook","event":"shareToFacebook","lang":"shareWeb_Facebook"},"Twitter":{"label":"Twitter","name":"Twitter","selected":true,"value":true,"sortid":"12","shareid":"Twitter","sharetitle":"分享到Twitter","event":"shareToTwitter","lang":"shareWeb_Twitter"},"LinkedIn":{"label":"LinkedIn","name":"LinkedIn","selected":true,"value":true,"sortid":"13","shareid":"LinkedIn","sharetitle":"分享到linkedIn","event":"shareToLinkedin","lang":"shareWeb_Linkedin"},"whatsapp":{"label":"whatsapp","name":"whatsapp","selected":true,"value":true,"sortid":"15","shareid":"whatsapp","sharetitle":"分享到whatsapp","event":"shareToWhatsapp","lang":"shareWeb_whatsapp"},"line":{"label":"line","name":"line","selected":true,"value":true,"sortid":"15","shareid":"line","sharetitle":"分享到line","event":"shareToLine","lang":"shareWeb_line"},"qq_weibo":{"label":"腾讯微博","name":"qq_weibo","selected":true,"value":true,"sortid":"3","shareid":"qq_weibo","sharetitle":"分享到腾讯微博","event":"shareToQQwb","lang":"shareWeb_QQWeiBo"},"peopleBlog":{"label":"人民微博","name":"propleBlog","selected":true,"value":true,"sortid":"14","shareid":"propleBlog","sharetitle":"分享到人民微博","event":"shareToPeopleBlog","lang":"shareWeb_peopleBlog"}}
