學習pymysql 創建庫、表、新增代碼

上代碼

# -- coding: utf-8 --
import pymysql
db=pymysql.connect(host="localhost",user="root",password="root",port=3306,db="DZ_spider")
cursor=db.cursor()
# ver=cursor.execute("CREATE DATABASE IF NOT EXISTS DZ_spider CHARACTER SET UTF8")
#創建數據庫
# print(ver)
# sql="CREATE TABLE IF NOT EXISTS USERS(ID VARCHAR (255) NOT NULL ,USERNAME VARCHAR (255)NOT NULL,groups VARCHAR (255)NOT NULL,PRIMARY KEY (ID))"
#創建表
# cursor.execute(sql)
#執行SQL代碼
id="3"
username="fvef"
groups="vip"
 #測試數據
table="users"
data={
    "id":id,
    "username":username,
    "groups":groups
}
keys=",".join(data.keys())
values=tuple(data.values())
sql=f"INSERT INTO {table} VALUES{values}"
try:
    if cursor.execute(sql):
        print("successful")
        db.commit()
except:
    print("Failed")
    db.rollback()
db.close()

此代碼采用了python 3.8更新的 Python格式化字符串 簡便寫法

測試數據可 更換為爬取到的數據進行替換，我這里就隨便寫幾個填充位置