## 教你如何实现“python的getdata模块database_use函数”
### 一、整体流程
```mermaid
flowchart TD
A(开始) --> B(导入getdata模块)
B --> C(连接数据库)
C --> D(执行SQL查询)
D --> E(获取数据)
E --> F(关闭数据库连接)
F --> G(结
一直都说ArrayList是线程不安全的，只知其话，不懂其意，今天终于碰到了举例如下：单线程情况下：—>运行正常public static void main(String[] args) {
List<String> list = new ArrayList<>();
for (int i = 0; i < 30; i++) {
zjtest7-frontend:/root# service rsyslog startStarting system logger: usage: rsyslogd [options]use "man rsyslogd" for details. To run rsyslog interac...
1). Are there any good Reasons not to use LINQ in my projcts? We use .Net 3.5 and VSTO 3.0.http://stackoverflow.com/questions/1576679/reason-not-to-use-linq2.When to use LINQ in your design?http
nginx配置文件主要分为六个区域：main(全局设置)events(nginx工作模式)http(http设置)sever(主机设置)location(URL匹配)upstream(负载均衡服务器设置)注意：一些配置内容被 # 号注释掉，那代表的着默认配置
main 全局配置下面是一个main区域，他是一个全局的设置： user no
A use case
is a case (or situation) where your system is used to fulfill one or
more of your user's requirements; a use case captures a piece of
functionality that the system provides. Use cases ar
