## 環境搭建
### 1.python和pip檢查是否安裝成功
```
wangyijiadeMacBook-Air:~ bizzbee$ python -V
Python 3.7.0
wangyijiadeMacBook-Air:~ bizzbee$ pip -V
pip 19.2.1 from /Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/pip (python 3.7)
```
### 安裝pipenv
>創建項目文件夾，在文件夾里面運行安裝命令。
```
wangyijiadeMacBook-Air:fisher bizzbee$ sudo pip3 install pipenv -i https://pypi.douban.com/simple/
```
> 然后為當前項目pipenv安裝虛擬環境
> 在項目文件夾執行命令
```
pipenv install
```
> 激活或進入虛擬環境
```
wangyijiadeMacBook-Air:fisher bizzbee$ pipenv shell
Launching subshell in virtual environment…
bash-3.2$ . /Users/bizzbee/.local/share/virtualenvs/fisher-nuEPyaha/bin/activate
(fisher) bash-3.2$
```
> 這樣就進入了虛擬環境,這個環境是只屬于當前項目的。
#### 常用命令
```
(fisher) bash-3.2$ exit 退出虛擬環境命令
exit
wangyijiadeMacBook-Air:fisher bizzbee$ pipenv shell 進入虛擬環境命令
Launching subshell in virtual environment…
bash-3.2$ . /Users/bizzbee/.local/share/virtualenvs/fisher-nuEPyaha/bin/activate
(fisher) bash-3.2$ pipenv graph 查看包依賴關系
Flask==1.1.1
- click [required: >=5.1, installed: 7.0]
- itsdangerous [required: >=0.24, installed: 1.1.0]
- Jinja2 [required: >=2.10.1, installed: 2.10.1]
- MarkupSafe [required: >=0.23, installed: 1.1.1]
- Werkzeug [required: >=0.15, installed: 0.15.5]
(fisher) bash-3.2$
```
### 安裝flask
