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而且可以去修改參數(shù)調(diào)取別人的資料

防止用戶資料被別人調(diào)取，需要做的是驗(yàn)證調(diào)取者的身份，而不是隱藏user_id。

鎖是解決并發(fā)問題的經(jīng)典方案，對(duì)于簡(jiǎn)單并發(fā)問題，使用鎖就可以了。但對(duì)于事務(wù)這種復(fù)雜問題，光有鎖是不行的，比如兩個(gè)事務(wù)，他們是否能看到對(duì)方修改的數(shù)據(jù)，是否需要確保一個(gè)事務(wù)內(nèi)的讀是可重復(fù)的，這些問題的不同解決方案都會(huì)影響復(fù)雜應(yīng)用在并發(fā)時(shí)的邏輯和執(zhí)行結(jié)果，稍不注意就會(huì)導(dǎo)致錯(cuò)誤的結(jié)果，所以引入了隔離級(jí)別這個(gè)概念來對(duì)事務(wù)的隔離性進(jìn)行規(guī)范，也就是說隔離級(jí)別實(shí)際上是應(yīng)對(duì)事務(wù)這個(gè)復(fù)雜問題而引入的，如果僅有并發(fā)而沒有事務(wù)就無所謂的隔離級(jí)別了。

簡(jiǎn)單的說，鎖是并發(fā)控制的基礎(chǔ)，隔離級(jí)別是更高層次上的應(yīng)對(duì)事務(wù)的整體解決方案。

range-key，當(dāng) range 是一個(gè) Object Array 時(shí)，通過 range-key 來指定 Object 中 key 的值作為選擇器顯示內(nèi)容。

a標(biāo)簽加個(gè)download，

<a href="XXX.jpg" download=""> //可以寫，寫了下載名稱就是這個(gè)名字

已經(jīng)解決了,在render里直接this.props可以獲得

render() {

    const continueVisible = this.props.continueVisible;
    return (
    ....

1. 數(shù)組沒有 寬 這個(gè)說法，多維數(shù)組是要這樣理解的：

在最里層之前，所有層的元素實(shí)質(zhì)上都是一個(gè)數(shù)組。

比如三維數(shù)組你不可能按一個(gè)三維坐標(biāo)系去理解，它實(shí)質(zhì)上長(zhǎng)這樣的：

第一層： [0] - [1] - [2] - [...]
         |     |     |
第二層:  [0]   [0]   [0]
         |     |     |
        [1]   [1]   [1]
        
然后第二層單獨(dú)拿出來看

第二層： [0] - [1] - [2] - [...]
         |     |     |
第三層:  [0]   [0]   [0]
         |     |     |
        [1]   [1]   [1]

1. 你都已經(jīng) new int[5][5]; 了，對(duì)象已經(jīng)創(chuàng)建，值自然會(huì)被初始化，初始化的值是什么取決于這個(gè)數(shù)組的類型，int 的話是 0。

常量區(qū)，屬于常量字符串。

1. 把代碼上傳到服務(wù)器，搭好你這個(gè)代碼運(yùn)行所需要環(huán)境。比如Node.js，MySQL等等。
2. 如果開啟了防火墻服務(wù)，記得開放對(duì)應(yīng)服務(wù)的端口，不然訪問不到的。比如MySQL,要開放3306.如果沒有開啟防火墻服務(wù)，就不用考慮這個(gè)問題。
3. 然后開啟你程序所需要的各個(gè)服務(wù)。
4. 然后你本地的mpvue去訪問位于服務(wù)器上的這個(gè)api的網(wǎng)址，接受返回的數(shù)據(jù)就可以了

你安裝這個(gè)擴(kuò)展的命令是什么
可以通過 phpize安裝擴(kuò)展 安裝步驟

phpize
cd  openssl
./configure --with-php-config=/usr/local/php/bin/php-config
make  && make install

keep-live 沒效果你看是不是組件沒有name，參考這邊文章

CSS揭秘

自己把自己坑了。。。
錯(cuò)誤地應(yīng)用了 request包的寫法。。

1. 最好先插入數(shù)據(jù)庫(kù)然后做性能測(cè)試再來考慮需不需要做額外優(yōu)化，如果要，可以用 redis 做緩沖。
2. 各類推送服務(wù)，蘋果有官方推送服務(wù)，安卓上有各家推送，小米、極光等等。

有 可以在header直接插入js

推薦一個(gè)可視化正則表達(dá)式的網(wǎng)址
https://regexper.com/#%5C%7C%...

推薦一個(gè)正則表達(dá)式的匹配網(wǎng)址
https://regex101.com/#javascript

推薦一個(gè)正則學(xué)習(xí)地址：
http://deerchao.net/tutorials...

inspect只是為了查看容器里面的值的時(shí)候用的，你這里沒有調(diào)用，當(dāng)然也不會(huì)執(zhí)行

不支持https訪問。http可以訪問不代表https就一定可以。這個(gè)需要進(jìn)行一些配置的。

test列出的是你這樣，但你打印下test.obj看看發(fā)生了什么。

這兩個(gè)docker search都能找到的，當(dāng)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(dǎo)出就可以到客啟那安裝了。

緩存問題啊。
笨方法就是清楚手機(jī)緩存啊。
或者文件名后面帶動(dòng)態(tài)參數(shù)index.html?time=201808090102
這樣就不怕緩存了