发表日期： 2021-06-06 09:26:40 浏览次数：90
宣汉网站制作【宣汉网站优化】宣汉建网站、宣汉微信公众号运营、宣汉网页设计、宣汉微信小程序商城
宣汉县隶属于四川省达州市，位于四川盆地东北大巴山南麓，地处渝川陕鄂结合部，是达州卫星城市，介于东经107°22′~108°32′，北纬31°06′~31°49′之间，县城距达州市区32公里、达州机场42公里，襄渝铁路和渝陕高速公路、达万高速公路、210国道穿境而过。 [1]
宣汉县幅员面积4271平方公里，辖31个镇、19个乡、4个民族乡；2019年，户籍总人口127.82 万（常住人口102.3万），2019年，宣汉县实现地区生产总值3699090万元，人均地区生产总值36159元。 [2] 属中亚热带湿润季风气候区，无霜期长。境内地形复杂、山势逶迤，由东北向西南倾斜绵延。
宣汉县人文厚重。巴风土韵源远流长，境内罗家坝遗址，是巴文化的发源地；土家民俗风情独具，薅草锣鼓入选第一批国家级非物质文化遗产名录，是四川省唯一的土家族聚居地；红色文化底蕴深厚，创造了“一县成军（红三十三军）”的传奇，孕育了老一辈无产阶级革命家王维舟和新中国10位将军。 [1]
宣汉资源富集；拥有巴山大峡谷，洋烈水乡等3个国家4A级旅游景区。矿产资源中天然气预计储量1.5万亿方，年拥有150亿立方的天然气产能和285万吨的硫磺产量，煤炭储量1.6亿吨，富锂钾卤水储量20.9亿方；农副产品资源丰富，是全国黄牛、木本药材、速丰林、茶叶生产基地和蜀宣花牛种源基地。 [1]
2020年2月，四川省人民政府同意宣汉县退出贫困县。 [3] 2020年6月，宣汉成功创建为“四川省首批全域旅游示范区”。 [4] 2020年9月22日，荣获2019年度四川省粮食生产“丰收杯”。
npm is written in Node.js, so you need to install Node.js in order to use npm. You can install npm via the Node.js website, or by installing a Node Version Manager or NVM. This chapter explains both options.
If you just want to get started exploring npm, using the Node.js installation method is fastest. If you are an advanced developer ready to jump in and work with versions, use the node version manager. If you aren't sure, please read this chapter before you decide. You can always change how you run npm in the future.
If you're using OS X or Windows, use one of the installers from the Node.js download page. Be sure to install the version labeled LTS. Other versions have not yet been tested with npm.
If you're using Linux, you can find installers by scrolling on the Node.js download page, or, check NodeSource's binary distributions to see if there's a more recent version that works with your system.
After installing, run node -v. The version should be v8.9.1 or higher.
When you install node.js, npm is automatically installed. However, npm gets updated more frequently than Node.js, so be sure that you have the latest version.
To test, run npm -v.
To be sure that this matches the latest version, scroll to the bottom of this page. If the version you see does not match the latest version, run:
npm install npm@latest -g.
This will install the latest official, tested version of npm.
To install a version that will be released in the future, run:
npm install npm@next -g.
Since npm and node.js products are managed by different entities, updates and maintenance can become complex. Also, the Node.js installation process installs npm in a directory that only has local permissions. This can cause permissions errors when you attempt to run packages globally.
To solve both these issues, many developers opt to use a node version manager, or nvm, to install npm. The version manager will avoid permissions errors, and will solve the complexities of updating Node.js and npm.
In addition, developers can use an nvm to test their applications on multiple versions of npm. The nvm enables you to easily switch npm as well as node versions. This makes it easier to ensure that your applications work for most users, even if they are using other versions of npm. If you decide to install a version manager, use the instructions for the version manager you select to learn how to switch versions, and to learn how to keep up-to-date with the latest version of npm.
Click here to learn how to install nvm for MacOs.
To install and manage npm and Node.js on Windows, we suggest nvm-windows.
Click here to learn how to install nvm for Linux.
For more advanced users
If you want to try the next, unreleased version of npm to test that packages you have created will work with the planned next release of npm, use this command:
npm install npm@next -g
This may simply reinstall the current version, depending on the development cycle. Also, this early version is not final. So features may or may not match what is ultimately released.
To learn more about how to use nvm, click here.
