readObject('demo.json', function (err, obj) { if (err) { console.error(err); } else { console.log(obj); } }); fs = require 'fs' readObject = (filePath, cb) -> fs.readFile filePath, (err, buf) err, obj readObject 'demo.json', (err, obj) -> if err console.error err else console.log obj JavaScript CoffeeScript { "name": "Mark Volkmann", "address": { "street": "644 Glen whilst, until, waterfall, queue, auto, iterator, apply, nextTick utilities memoize, unmemoize, log, dir, noConflict Written by Caolan McMahon https://github.com/caolan/async 12 Node.js Async Example

/mydata/node0/genesis.json --config /mydata/node0/config.json 验证可共识 查看日志，查看打包信息 tail -f /mydata/node0/log/* |grep +++ 等待一段时间，可看到周期性的出现如下日志，表示节点间在周期性的进行共 识，节点运行正确 INFO|2018-08-10 14:53:33:083|+++++++++++++++++++++++++++ 验证已连接 查看日志 cat /mydata/node1/log/* | grep "Connected" 看到如下日志，表示节点已经连接了其它的节点 INFO|2018-11-07 15:21:11:314|Connected to 1 peers 验证可共识 查看日志，查看打包信息 tail -f /mydata/node1/log/* |grep +++ 可看到周期性的出现如下日志， 文件。 node0 |-- genesis.json #创世块文件（创世块信息，god账号，创世节点） |-- config.json #节点总配置文件（IP，端口，共识算法） |-- log.conf #节点日志配置文件（日志格式，优先级） |-- start.sh #节点启动脚本 |-- stop.sh #节点停止脚本 |-- data | |--

our spider. You can see a log line for each URL defined in start_urls. Because these URLs are the starting ones, they have no referrers, which is shown at the end of the log line, where it says (referer: org/Computers/Programming/Languages/Python/Books/ This is what the shell looks like: [ ... Scrapy log here ... ] [s] Available Scrapy objects: [s] 2010-08-19 21:45:59-0300 [default] INFO: Spider closed each depth level Usage example: $ scrapy parse http://www.example.com/ -c parse_item [ ... scrapy log lines crawling example.com spider ... ] >>> STATUS DEPTH LEVEL 1 <<< # Scraped Items ------------

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80 4.4.1. Log Format . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82 4.4.4. Log Levels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83 4.4.5. Log Groups . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83 4.4.6. Custom Log Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80 4.4.1. Log Format . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82 4.4.4. Log Levels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83 4.4.5. Log Groups . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83 4.4.6. Custom Log Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79 4.4.1. Log Format . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81 4.4.4. Log Levels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82 4.4.5. Log Groups . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82 4.4.6. Custom Log Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79 4.4.1. Log Format . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81 4.4.4. Log Levels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82 4.4.5. Log Groups . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82 4.4.6. Custom Log Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80 4.4.1. Log Format . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82 4.4.4. Log Levels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83 4.4.5. Log Groups . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83 4.4.6. Custom Log Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

our spider. You can see a log line for each URL defined in start_urls. Because these URLs are the starting ones, they have no referrers, which is shown at the end of the log line, where it says (referer: org/Computers/Programming/Languages/Python/Books/ This is what the shell looks like: [ ... Scrapy log here ... ] [s] Available Scrapy objects: [s] 2010-08-19 21:45:59-0300 [default] INFO: Spider closed each depth level Usage example: $ scrapy parse http://www.example.com/ -c parse_item [ ... scrapy log lines crawling example.com spider ... ] >>> STATUS DEPTH LEVEL 1 <<< # Scraped Items ------------

our spider. You can see a log line for each URL defined in start_urls. Because these URLs are the starting ones, they have no referrers, which is shown at the end of the log line, where it says (referer: org/Computers/Programming/Languages/Python/Books/ This is what the shell looks like: [ ... Scrapy log here ... ] [s] Available Scrapy objects: [s] 2010-08-19 21:45:59-0300 [default] INFO: Spider closed each depth level Usage example: $ scrapy parse http://www.example.com/ -c parse_item [ ... scrapy log lines crawling example.com spider ... ] >>> STATUS DEPTH LEVEL 1 <<< # Scraped Items -----------