# PyGo

**Repository Path**: javakam/PyGo

## Basic Information

- **Project Name**: PyGo
- **Description**: python。。。。。。。。。。。。。
- **Primary Language**: Unknown
- **License**: Not specified
- **Default Branch**: master
- **Homepage**: None
- **GVP Project**: No

## Statistics

- **Stars**: 0
- **Forks**: 0
- **Created**: 2022-02-23
- **Last Updated**: 2023-08-03

## Categories & Tags

**Categories**: Uncategorized

**Tags**: None

## README

# PyGo

## pymongo

### 一、先写个配置文件config.py

```
MONGO_URI = 'localhost'     #本地
MONGO_DB = 'dbname'
MONGO_TABLE = 'tbname'
```

### 二、连接并操作数据库

```python
import pymongo
from config import *  # 导入配置文件

client = pymongo.MongoClient(MONGO_URI)  # 创建连接
db = client[MONGO_DB]  # 选择目标数据库

db[MONGO_TABLE].insert({"key1": "value1", "key2", "value2"})  # 写入
db[MONGO_TABLE].remove()  # 删除记录
db[MONGO_TABLE].remove({"key1": "value1"})  # 选择删除
db[MONGO_TABLE].updata({"key1": "value1"}, {"$set": {"key2": "value2", "key3": "value3"}})  # 更新记录
```

#### 空值问题

https://www.cnblogs.com/linyouyi/p/11409844.html

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### Xpath 不等于写法
https://blog.csdn.net/galen2016/article/details/102921165