代码:
sql = "select * from appelementinfo"
coon = pymysql.connect(user='root', password='', db='autoplatform', port='3306', host='127.0.0.1', charset='utf8')
cursor = coon.cursor()
执行结果:
"D:\Program Files\Python38\python.exe" D:/pythonproject/python_learn/mysql_data.py
Traceback (most recent call last):
File "D:/pythonproject/python_learn/mysql_data.py", line 16, in <module>
read_sql()
File "D:/pythonproject/python_learn/mysql_data.py", line 5, in read_sql
coon = pymysql.connect(user='root', password='', db='autoplatform', port='3306', host='127.0.0.1', charset='utf8')
File "D:\Program Files\Python38\lib\site-packages\pymysql\__init__.py", line 90, in Connect
return Connection(*args, **kwargs)
File "D:\Program Files\Python38\lib\site-packages\pymysql\connections.py", line 704, in __init__
self.connect()
File "D:\Program Files\Python38\lib\site-packages\pymysql\connections.py", line 964, in connect
self.host_info = "socket %s:%d" % (self.host, self.port)
TypeError: %d format: a number is required, not str Process finished with exit code 1
错误分析:
port字段格式转换错误,需要一个整型,但是传入了一个字符串
coon = pymysql.connect(user='root', password='', db='autoplatform', port=3306, host='127.0.0.1', charset='utf8')
再次执行未报错