如何使用python在sqlite3中插入动态数据

回溯最近一次呼叫上次：

enter code here

import sqlite3

conn = sqlite3.connect('tutorial.db')
c = conn.cursor()

def create_table():
c.execute("CREATE TABLE example(Language VARCHAR, Version REAL, Skill 
TEXT)")

def enter_data():
c.execute("INSERT INTO example VALUES('Python', 2.7, 'Beginner')")
c.execute("INSERT INTO example VALUES('Python', 3.3, 'Intermediate')")
c.execute("INSERT INTO example VALUES('Python', 3.4, 'Expert')")
conn.commit()

def enter_dynamic_data():
lang = input("What language? ")
version = float(input("What version? "))
skill = input("What skill level? ")

c.execute("INSERT INTO example (Language, Version, Skill) VALUES (?, ?, ?)", 
(lang, version, skill))

conn.commit()


enter_dynamic_data()

conn.close()

---

如何消除此错误？

此消息表示表示例不存在。您似乎没有调用“创建\u表”或“输入\u数据”

尝试使用：-

 File "C:\Users\karti\Desktop\sqlite3\0304 -  inserting dynamic data.py", line 25, in <module>
    enter_dynamic_data()
  File "C:\Users\karti\Desktop\sqlite3\0304 -  inserting dynamic data.py", line 20, in enter_dynamic_data
    c.execute("INSERT INTO example (Language, Version, Skill) VALUES (?, ?, ?)", (lang, version, skill))
sqlite3.OperationalError: no such table: example

---

请格式化您的回溯。此外，源代码的格式设置也已中断。在将数据插入表之前，请尝试运行create_table函数，错误是告诉您该表不存在。在首次调用create_table或使用该表所在的数据库时，无法复制该表。

import sqlite3
conn = sqlite3.connect('tutorial.db')
c = conn.cursor()


def create_table():
    c.execute("CREATE TABLE IF NOT EXISTS example(Language VARCHAR, Version REAL, Skill TEXT)") #<<<<<<<<<< CHANGED


def enter_data():
    c.execute("INSERT INTO example VALUES('Python', 2.7, 'Beginner')")


create_table() #<<<<<<<<<< ADDED
enter_data() #<<<<<<<<<< ADDED
c.execute("INSERT INTO example VALUES('Python', 3.3, 'Intermediate')")
c.execute("INSERT INTO example VALUES('Python', 3.4, 'Expert')")
conn.commit()


def enter_dynamic_data():
    lang = input("What language? ")
    version = float(input("What version? "))
    skill = input("What skill level? ")
    c.execute("INSERT INTO example (Language, Version, Skill) VALUES (?, ?, ?)",
          (lang, version, skill))
    conn.commit()
enter_dynamic_data()

cursor = c.connection.cursor() #<<<<<<<<<< ADDED
cursor.execute("SELECT * FROM example") #<<<<<<<<<< ADDED
for row in cursor: #<<<<<<<<<< ADDED
    print("Language=", row[0], " Version=", row[1], " Skill=", row[2]) #<<<<<<<<<< ADDED

conn.close()

What language? Basic
What version? 3
What skill level? Easy
Language= Python  Version= 2.7  Skill= Beginner
Language= Python  Version= 3.3  Skill= Intermediate
Language= Python  Version= 3.4  Skill= Expert
Language= Basic  Version= 3.0  Skill= Easy

Process finished with exit code 0