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你用的是virtualbox虛擬機嗎？那個是virtualbox guest的源碼包，需要你實現(xiàn)安裝編譯依賴(比如kernel-devel, gcc, make, perl等等)，然后運行那個run腳本。注意那個run腳本在光盤中是不具有可執(zhí)行權(quán)限的，不能直接雙擊運行，必須拷貝出來，賦可執(zhí)行權(quán)限，在終端下交互式運行。

see: https://www.tecmint.com/insta...

報這個錯的原因是在 session_start() 之前已經(jīng)有內(nèi)容返回給 response 了。具體為什么出這個問題從這一行代碼看不出來，不妨貼多點。

缺少postcss的配置文件，你可以在根目錄下建一個.postcssrc.js文件, 里面可以空著或者加一行 module.exports = {}

找到原因了，因為crontab默認在/root下執(zhí)行，所以php腳本引入相對路徑時，會按照crontab執(zhí)行路徑（/root）去include文件，所以就找不到要include的文件了。

一個瀏覽器開啟時通常是多進程的,一個是主進程,一個是GPU進程,還有看到的標簽頁也是包含一個進程,瀏覽器有時會把多個進程優(yōu)化成一個進程,所謂進程就是在任務(wù)管理器下能看到的任務(wù),一個進程下包含多個線程,有js引擎線程,渲染線程,事件隊列線程,定時器線程,如果發(fā)起請求還有對應(yīng)的線程開啟,其中js引擎線程和渲染線程是互斥的

使用env,printenv可以看到當前shell下所有可用環(huán)境變量，使用export可以看到當前被export的環(huán)境變量，也就是能在子進程中起作用的環(huán)境變量。

在shell腳本中讀取某個環(huán)境變量只能用${ENV_VAR_NAME}這種形式

感覺這個文件應(yīng)該不是vue文件，只是一個被改了后綴名的文件，如把a.jpg的圖片改成了home.vue，實際的大小沒變，但是它終究不是文本類型的文件，文件內(nèi)部編碼還是jpg編碼，樓主是不是被人耍了？21kb的vue文件，應(yīng)該有600行了。

change 只是在文本框發(fā)生變化是所觸發(fā)的
你失去焦點 輸入完成也可以用blur

但是這個不是特別如意

你直接watch 監(jiān)聽這個model值的變化不更好

sudo mv file{1,2} directory* newDirectory/

應(yīng)該是你動態(tài)資源的路徑不對吧

做如下設(shè)置試試：

gzip_types    text/plain application/javascript application/x-javascript text/javascript text/xml text/css;

據(jù)說是因為瀏覽器支持最多的js是text/javascript類型。

參考：

https://stackoverflow.com/que...

主要分為兩種日志，錯誤日志和分析日志

錯誤由各個模塊拋出，在最上層統(tǒng)一處理錯誤，并輸出錯誤信息到錯誤日志
分析日志一般用于統(tǒng)計，一般一次請求就一個，包含和這次請求所有相關(guān)的信息，其中也包括一些統(tǒng)計指標

使用 github.com/sirupsen/logrus + github.com/sohlich/elogrus 收集日志到 es，基于 es 作統(tǒng)計分析，以及監(jiān)控報警

這兩個docker search都能找到的，當然前提是能連網(wǎng)，
或者直接用瀏覽器訪問也行，象下面這樣。

https://index.docker.io/v1/search?q=rhel7.2&n=25:

{"num_pages":1,"num_results":12,"page_size":25,"page":1,"query":"rhel7.2","results":[{"name":"caiqian/rhel7.2beta-overlay","description":"RHEL7.2 Beta image for overlayfs testing","star_count":1,"is_trusted":false,"is_automated":false,"is_official":false},{"name":"vtas/rhel7.2","description":"","star_count":1,"is_trusted":false,"is_automated":false,"is_official":false},{"name":"mcalizo/rhel7.2systemd","description":"RHEL7.2 with Systemd","star_count":0,"is_trusted":false,"is_automated":false,"is_official":false},{"name":"shrutikag/rhel7.2","description":"","star_count":0,"is_trusted":false,"is_automated":false,"is_official":false},{"name":"adriaanbrae/rhel7.2","description":"","star_count":0,"is_trusted":false,"is_automated":false,"is_official":false},{"name":"aramatra/rhel7.2","description":"","star_count":1,"is_trusted":false,"is_automated":false,"is_official":false},{"name":"deepfenceio/rhel7.2","description":"","star_count":0,"is_trusted":false,"is_automated":false,"is_official":false},{"name":"mmithaiw/rhel7.2-modified","description":"","star_count":0,"is_trusted":false,"is_automated":false,"is_official":false},{"name":"jahndai/rhel7","description":"Clean image for FET user. By RHEL7.2","star_count":0,"is_trusted":false,"is_automated":false,"is_official":false},{"name":"mbafna/rhel72-lvm2","description":"RHEL7.2 image with LVM2 ","star_count":0,"is_trusted":false,"is_automated":false,"is_official":false},{"name":"vgs24/rhel72le","description":"Created a rhel7.2 le docker image","star_count":0,"is_trusted":false,"is_automated":false,"is_official":false},{"name":"mkimranbasha/rhel72","description":"Docker file for RHEL7.2","star_count":0,"is_trusted":false,"is_automated":false,"is_official":false}]}


https://index.docker.io/v1/search?q=centos7&n=25:


{"num_pages":217,"num_results":5407,"page_size":25,"page":1,"query":"centos7","results":[{"name":"openshift/base-centos7","description":"A Centos7 derived base image for Source-To-Image builders","star_count":22,"is_trusted":false,"is_automated":false,"is_official":false},{"name":"openshift/jenkins-2-centos7","description":"A Centos7 based Jenkins v2.x image for use with OpenShift v3","star_count":12,"is_trusted":false,"is_automated":false,"is_official":false},{"name":"ansible/centos7-ansible","description":"Ansible on Centos7","star_count":109,"is_trusted":true,"is_automated":true,"is_official":false},{"name":"openshift/mysql-55-centos7","description":"DEPRECATED: A Centos7 based MySQL v5.5 image for use with OpenShift v3","star_count":6,"is_trusted":false,"is_automated":false,"is_official":false},{"name":"openshift/jenkins-1-centos7","description":"DEPRECATED: A Centos7 based Jenkins v1.x image for use with OpenShift v3","star_count":4,"is_trusted":false,"is_automated":false,"is_official":false},{"name":"openshift/wildfly-101-centos7","description":"A Centos7 based WildFly v10.1 image for use with OpenShift v3","star_count":3,"is_trusted":false,"is_automated":false,"is_official":false},{"name":"openshift/wildfly-100-centos7","description":"A Centos7 based WildFly v10.0 image for use with OpenShift v3","star_count":1,"is_trusted":false,"is_automated":false,"is_official":false},{"name":"openshift/php-55-centos7","description":"DEPRECATED: A Centos7 based PHP v5.5 image for use with OpenShift v3","star_count":1,"is_trusted":false,"is_automated":false,"is_official":false},{"name":"openshift/wildfly-81-centos7","description":"A Centos7 based WildFly v8.1 image for use with OpenShift v3","star_count":1,"is_trusted":false,"is_automated":false,"is_official":false},{"name":"openshift/wildfly-90-centos7","description":"A Centos7 based WildFly v9.0 image for use with OpenShift v3","star_count":0,"is_trusted":false,"is_automated":false,"is_official":false},{"name":"openshift/nodejs-010-centos7","description":"DEPRECATED: A Centos7 based NodeJS v0.10 image for use with OpenShift v3","star_count":4,"is_trusted":false,"is_automated":false,"is_official":false},{"name":"openshift/mongodb-24-centos7","description":"DEPRECATED: A Centos7 based MongoDB v2.4 image for use with OpenShift v3","star_count":1,"is_trusted":false,"is_automated":false,"is_official":false},{"name":"openshift/ruby-20-centos7","description":"DEPRECATED: A Centos7 based Ruby v2.0 image for use with OpenShift v3","star_count":3,"is_trusted":false,"is_automated":false,"is_official":false},{"name":"openshift/postgresql-92-centos7","description":"DEPRECATED: A Centos7 based PostgreSQL v9.2 image for use with OpenShift v3","star_count":0,"is_trusted":false,"is_automated":false,"is_official":false},{"name":"openshift/python-33-centos7","description":"DEPRECATED: A Centos7 based Python v3.3 image for use with OpenShift v3","star_count":0,"is_trusted":false,"is_automated":false,"is_official":false},{"name":"openshift/perl-516-centos7","description":"DEPRECATED: A Centos7 based Perl v5.16 image for use with OpenShift v3","star_count":0,"is_trusted":false,"is_automated":false,"is_official":false},{"name":"fortinj66/centos7-s2i-nodejs","description":"based off of ryanj/centos7-s2i-nodejs.  Biggest change is to allow a build script be be run","star_count":0,"is_trusted":false,"is_automated":false,"is_official":false},{"name":"openshift/wildfly-110-centos7","description":"A Centos7 based WildFly v11.0 image for use with OpenShift v3","star_count":1,"is_trusted":false,"is_automated":false,"is_official":false},{"name":"centos/python-35-centos7","description":"Platform for building and running Python 3.5 applications\n","star_count":20,"is_trusted":false,"is_automated":false,"is_official":false},{"name":"centos/postgresql-96-centos7","description":"PostgreSQL is an advanced Object-Relational database management system\n","star_count":16,"is_trusted":false,"is_automated":false,"is_official":false},{"name":"centos/mysql-57-centos7","description":"MySQL 5.7 SQL database server\n","star_count":27,"is_trusted":false,"is_automated":false,"is_official":false},{"name":"centos/httpd-24-centos7","description":"Platform for running Apache httpd 2.4 or building httpd-based application\n","star_count":12,"is_trusted":false,"is_automated":false,"is_official":false},{"name":"openshift/php-56-centos7","description":"DEPRECATED: A Centos7 based PHP v5.6 image for use with OpenShift v3","star_count":2,"is_trusted":false,"is_automated":false,"is_official":false},{"name":"centos/php-56-centos7","description":"Platform for building and running PHP 5.6 applications\n","star_count":12,"is_trusted":false,"is_automated":false,"is_official":false},{"name":"centos/php-70-centos7","description":"Platform for building and running PHP 7.0 applications\n","star_count":9,"is_trusted":false,"is_automated":false,"is_official":false}]}

從上面選你想要的 docker pull 下來， 用docker export 導出就可以到客啟那安裝了。

"scripts": {
    "dev": "webpack-dev-server --inline --progress --config build/webpack.dev.conf.js",
    "start": "npm run dev",
    "build": "node build/build.js"
  }

運行npm run dev時會根據(jù)開發(fā)環(huán)境的相關(guān)配置文件打包文件并啟動webpack-dev-server-一個基于node的小型http服務(wù)器。這段命令你可以在npm的配置文件package.json中找到。

建議樓主還是先深入了解下前端工程化、模塊化開發(fā)、nodejs、npm、webpack相關(guān)概念。

解決了

npm i -D exports-loader

a.vue, 單個文件使用

let QRCode = require('exports-loader?QRCode!qrcodejs/qrcode')
mounted () {
    console.log(new QRCode(...))
}

.eslintrc.js 需要關(guān)閉一個驗證

'import/no-webpack-loader-syntax': 'off'

重裝之后配置文件也改變了吧

https://segmentfault.com/a/11...

在/usr目錄運行 ls -l 看看權(quán)限是什么，我的權(quán)限drwxr-xr-x，brew正常使用，chown也正常

ls -lO看看是不是uchg了
sudo chflags nouchg /usr/local解除一下再運行就行了

top看下服務(wù)器負載高不高，是否有被攻擊，查看一下當前各連接狀態(tài)（SYN_RECV、FIN_WAIT、TIME_WAIT、ESTABLISHED）的數(shù)量。把iptables打開看看一段時間后會不會下降。

jenkins可以打git上的不同branch啊，branch可以作為jenkins project的參數(shù)傳入的，干嘛要重新開一個git repo和jenkins project呢？沒有理解 ！另外前端同事說的，“會導致一進頁面要加載全站的內(nèi)容，速度很慢” 也沒有理解