{"id":1067968,"date":"2024-12-31T16:39:14","date_gmt":"2024-12-31T08:39:14","guid":{"rendered":"https:\/\/docs.pingcode.com\/ask\/ask-ask\/1067968.html"},"modified":"2024-12-31T16:39:17","modified_gmt":"2024-12-31T08:39:17","slug":"%e5%a6%82%e4%bd%95%e4%bd%bf%e7%94%a8python%e6%93%8d%e4%bd%9c%e6%95%b0%e6%8d%ae%e5%ba%93","status":"publish","type":"post","link":"https:\/\/docs.pingcode.com\/ask\/1067968.html","title":{"rendered":"\u5982\u4f55\u4f7f\u7528python\u64cd\u4f5c\u6570\u636e\u5e93"},"content":{"rendered":"

\"\u5982\u4f55\u4f7f\u7528python\u64cd\u4f5c\u6570\u636e\u5e93\"<\/p>\n

\u4f7f\u7528Python\u64cd\u4f5c\u6570\u636e\u5e93\u53ef\u4ee5\u901a\u8fc7\u4ee5\u4e0b\u6b65\u9aa4\u8fdb\u884c\uff1a\u9009\u62e9\u5408\u9002\u7684\u6570\u636e\u5e93\u3001\u5b89\u88c5\u76f8\u5e94\u7684Python\u5e93\u3001\u8fde\u63a5\u6570\u636e\u5e93\u3001\u6267\u884cSQL\u8bed\u53e5\u3001\u5904\u7406\u67e5\u8be2\u7ed3\u679c\u3002<\/strong> \u5176\u4e2d\uff0c\u9009\u62e9\u5408\u9002\u7684\u6570\u636e\u5e93\u548c\u5b89\u88c5\u76f8\u5e94\u7684Python\u5e93\u662f\u6700\u57fa\u7840\u7684\u6b65\u9aa4\uff0c\u672c\u6587\u5c06\u91cd\u70b9\u4ecb\u7ecd\u5982\u4f55\u901a\u8fc7Python\u5e93\u4e0e\u6570\u636e\u5e93\u8fdb\u884c\u8fde\u63a5\u5e76\u6267\u884cSQL\u8bed\u53e5\u3002<\/p>\n<\/p>\n

\u4e00\u3001\u9009\u62e9\u5408\u9002\u7684\u6570\u636e\u5e93<\/p>\n<\/p>\n

\u5728\u9009\u62e9\u6570\u636e\u5e93\u65f6\uff0c\u9996\u5148\u9700\u8981\u6839\u636e\u9879\u76ee\u9700\u6c42\u786e\u5b9a\u4f7f\u7528\u54ea\u79cd\u6570\u636e\u5e93\u3002\u5e38\u89c1\u7684\u6570\u636e\u5e93\u6709\u5173\u7cfb\u578b\u6570\u636e\u5e93\u548c\u975e\u5173\u7cfb\u578b\u6570\u636e\u5e93\u4e24\u5927\u7c7b\u3002\u5173\u7cfb\u578b\u6570\u636e\u5e93\u5982MySQL\u3001PostgreSQL\u3001SQLite\u7b49\uff0c\u9002\u7528\u4e8e\u5177\u6709\u7ed3\u6784\u5316\u6570\u636e\u548c\u9700\u8981\u6267\u884c\u590d\u6742\u67e5\u8be2\u7684\u5e94\u7528\u3002\u975e\u5173\u7cfb\u578b\u6570\u636e\u5e93\u5982MongoDB\u3001Redis\u7b49\uff0c\u9002\u7528\u4e8e\u9700\u8981\u5904\u7406\u5927\u91cf\u975e\u7ed3\u6784\u5316\u6570\u636e\u6216\u9700\u8981\u9ad8\u6027\u80fd\u7684\u5e94\u7528\u3002<\/p>\n<\/p>\n

1.1 \u5173\u7cfb\u578b\u6570\u636e\u5e93<\/h3>\n<\/p>\n

MySQL<\/strong>\uff1aMySQL\u662f\u4e00\u4e2a\u5e7f\u6cdb\u4f7f\u7528\u7684\u5f00\u6e90\u5173\u7cfb\u578b\u6570\u636e\u5e93\u7ba1\u7406\u7cfb\u7edf\uff0c\u9002\u7528\u4e8eWeb\u5e94\u7528\u548c\u6570\u636e\u5206\u6790\u3002<\/p>\n<\/p>\n

PostgreSQL<\/strong>\uff1aPostgreSQL\u662f\u4e00\u4e2a\u529f\u80fd\u5f3a\u5927\u7684\u5f00\u6e90\u5173\u7cfb\u578b\u6570\u636e\u5e93\u7ba1\u7406\u7cfb\u7edf\uff0c\u652f\u6301\u590d\u6742\u67e5\u8be2\u548c\u4e8b\u52a1\u5904\u7406\u3002<\/p>\n<\/p>\n

SQLite<\/strong>\uff1aSQLite\u662f\u4e00\u4e2a\u8f7b\u91cf\u7ea7\u7684\u5d4c\u5165\u5f0f\u5173\u7cfb\u578b\u6570\u636e\u5e93\uff0c\u9002\u7528\u4e8e\u5c0f\u578b\u5e94\u7528\u548c\u79fb\u52a8\u8bbe\u5907\u3002<\/p>\n<\/p>\n

1.2 \u975e\u5173\u7cfb\u578b\u6570\u636e\u5e93<\/h3>\n<\/p>\n

MongoDB<\/strong>\uff1aMongoDB\u662f\u4e00\u4e2a\u9762\u5411\u6587\u6863\u7684NoSQL\u6570\u636e\u5e93\uff0c\u9002\u7528\u4e8e\u5b58\u50a8\u5927\u91cf\u975e\u7ed3\u6784\u5316\u6570\u636e\u548c\u9ad8\u5e76\u53d1\u7684\u5e94\u7528\u3002<\/p>\n<\/p>\n

Redis<\/strong>\uff1aRedis\u662f\u4e00\u4e2a\u9ad8\u6027\u80fd\u7684\u952e\u503c\u5b58\u50a8\u6570\u636e\u5e93\uff0c\u9002\u7528\u4e8e\u9700\u8981\u5feb\u901f\u8bfb\u5199\u64cd\u4f5c\u7684\u5e94\u7528\u3002<\/p>\n<\/p>\n

\u4e8c\u3001\u5b89\u88c5\u76f8\u5e94\u7684Python\u5e93<\/p>\n<\/p>\n

\u6839\u636e\u9009\u62e9\u7684\u6570\u636e\u5e93\uff0c\u5b89\u88c5\u76f8\u5e94\u7684Python\u5e93\u3002\u5e38\u89c1\u7684Python\u5e93\u6709\u4ee5\u4e0b\u51e0\u79cd\uff1a<\/p>\n<\/p>\n

2.1 \u5b89\u88c5MySQL\u5e93<\/h3>\n<\/p>\n

pip install mysql-connector-python<\/p>\n
<\/code><\/pre>\n<\/p>\n
2.2 \u5b89\u88c5PostgreSQL\u5e93<\/h3>\n<\/p>\n
pip install psycopg2<\/p>\n
<\/code><\/pre>\n<\/p>\n
2.3 \u5b89\u88c5SQLite\u5e93<\/h3>\n<\/p>\n
pip install sqlite3<\/p>\n
<\/code><\/pre>\n<\/p>\n
2.4 \u5b89\u88c5MongoDB\u5e93<\/h3>\n<\/p>\n
pip install pymongo<\/p>\n
<\/code><\/pre>\n<\/p>\n
2.5 \u5b89\u88c5Redis\u5e93<\/h3>\n<\/p>\n
pip install redis<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u4e09\u3001\u8fde\u63a5\u6570\u636e\u5e93<\/p>\n<\/p>\n
3.1 \u8fde\u63a5MySQL\u6570\u636e\u5e93<\/h3>\n<\/p>\n
import mysql.connector<\/p>\n
conn = mysql.connector.connect(<\/p>\n
    host="your_host",<\/p>\n
    user="your_username",<\/p>\n
    password="your_password",<\/p>\n
    database="your_database"<\/p>\n
)<\/p>\n
cursor = conn.cursor()<\/p>\n
<\/code><\/pre>\n<\/p>\n
3.2 \u8fde\u63a5PostgreSQL\u6570\u636e\u5e93<\/h3>\n<\/p>\n
import psycopg2<\/p>\n
conn = psycopg2.connect(<\/p>\n
    host="your_host",<\/p>\n
    user="your_username",<\/p>\n
    password="your_password",<\/p>\n
    database="your_database"<\/p>\n
)<\/p>\n
cursor = conn.cursor()<\/p>\n
<\/code><\/pre>\n<\/p>\n
3.3 \u8fde\u63a5SQLite\u6570\u636e\u5e93<\/h3>\n<\/p>\n
import sqlite3<\/p>\n
conn = sqlite3.connect('your_database.db')<\/p>\n
cursor = conn.cursor()<\/p>\n
<\/code><\/pre>\n<\/p>\n
3.4 \u8fde\u63a5MongoDB\u6570\u636e\u5e93<\/h3>\n<\/p>\n
from pymongo import MongoClient<\/p>\n
client = MongoClient("your_connection_string")<\/p>\n
db = client.your_database<\/p>\n
<\/code><\/pre>\n<\/p>\n
3.5 \u8fde\u63a5Redis\u6570\u636e\u5e93<\/h3>\n<\/p>\n
import redis<\/p>\n
r = redis.Redis(<\/p>\n
    host='your_host',<\/p>\n
    port=your_port, <\/p>\n
    password='your_password'<\/p>\n
)<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u56db\u3001\u6267\u884cSQL\u8bed\u53e5<\/p>\n<\/p>\n
4.1 \u6267\u884c\u67e5\u8be2\u8bed\u53e5<\/h3>\n<\/p>\n
MySQL\u3001PostgreSQL\u3001SQLite<\/strong><\/p>\n<\/p>\n
query = "SELECT * FROM your_table"<\/p>\n
cursor.execute(query)<\/p>\n
results = cursor.fetchall()<\/p>\n
for row in results:<\/p>\n
    print(row)<\/p>\n
<\/code><\/pre>\n<\/p>\n
MongoDB<\/strong><\/p>\n<\/p>\n
collection = db.your_collection<\/p>\n
results = collection.find()<\/p>\n
for document in results:<\/p>\n
    print(document)<\/p>\n
<\/code><\/pre>\n<\/p>\n
Redis<\/strong><\/p>\n<\/p>\n
r.set('key', 'value')<\/p>\n
value = r.get('key')<\/p>\n
print(value)<\/p>\n
<\/code><\/pre>\n<\/p>\n
4.2 \u6267\u884c\u63d2\u5165\u8bed\u53e5<\/h3>\n<\/p>\n
MySQL\u3001PostgreSQL\u3001SQLite<\/strong><\/p>\n<\/p>\n
insert_query = "INSERT INTO your_table (column1, column2) VALUES (%s, %s)"<\/p>\n
values = ("value1", "value2")<\/p>\n
cursor.execute(insert_query, values)<\/p>\n
conn.commit()<\/p>\n
<\/code><\/pre>\n<\/p>\n
MongoDB<\/strong><\/p>\n<\/p>\n
document = {"key1": "value1", "key2": "value2"}<\/p>\n
collection.insert_one(document)<\/p>\n
<\/code><\/pre>\n<\/p>\n
Redis<\/strong><\/p>\n<\/p>\n
r.set('key', 'value')<\/p>\n
<\/code><\/pre>\n<\/p>\n
4.3 \u6267\u884c\u66f4\u65b0\u8bed\u53e5<\/h3>\n<\/p>\n
MySQL\u3001PostgreSQL\u3001SQLite<\/strong><\/p>\n<\/p>\n
update_query = "UPDATE your_table SET column1 = %s WHERE column2 = %s"<\/p>\n
values = ("new_value", "condition_value")<\/p>\n
cursor.execute(update_query, values)<\/p>\n
conn.commit()<\/p>\n
<\/code><\/pre>\n<\/p>\n
MongoDB<\/strong><\/p>\n<\/p>\n
collection.update_one({"key1": "condition_value"}, {"$set": {"key1": "new_value"}})<\/p>\n
<\/code><\/pre>\n<\/p>\n
Redis<\/strong><\/p>\n<\/p>\n
r.set('key', 'new_value')<\/p>\n
<\/code><\/pre>\n<\/p>\n
4.4 \u6267\u884c\u5220\u9664\u8bed\u53e5<\/h3>\n<\/p>\n
MySQL\u3001PostgreSQL\u3001SQLite<\/strong><\/p>\n<\/p>\n
delete_query = "DELETE FROM your_table WHERE column1 = %s"<\/p>\n
value = ("condition_value",)<\/p>\n
cursor.execute(delete_query, value)<\/p>\n
conn.commit()<\/p>\n
<\/code><\/pre>\n<\/p>\n
MongoDB<\/strong><\/p>\n<\/p>\n
collection.delete_one({"key1": "condition_value"})<\/p>\n
<\/code><\/pre>\n<\/p>\n
Redis<\/strong><\/p>\n<\/p>\n
r.delete('key')<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u4e94\u3001\u5904\u7406\u67e5\u8be2\u7ed3\u679c<\/p>\n<\/p>\n
\u5904\u7406\u67e5\u8be2\u7ed3\u679c\u662f\u6570\u636e\u5e93\u64cd\u4f5c\u7684\u5173\u952e\u6b65\u9aa4\u4e4b\u4e00\u3002\u4e0d\u540c\u7684\u6570\u636e\u5e93\u548cPython\u5e93\u63d0\u4f9b\u4e86\u4e0d\u540c\u7684\u65b9\u5f0f\u6765\u5904\u7406\u67e5\u8be2\u7ed3\u679c\u3002<\/p>\n<\/p>\n
5.1 MySQL\u3001PostgreSQL\u3001SQLite<\/h3>\n<\/p>\n
\u4f7f\u7528cursor.fetchall()<\/code>\u65b9\u6cd5\u53ef\u4ee5\u83b7\u53d6\u67e5\u8be2\u7ed3\u679c\u7684\u6240\u6709\u884c\u3002\u6bcf\u884c\u662f\u4e00\u4e2a\u5143\u7ec4\uff0c\u53ef\u4ee5\u901a\u8fc7\u7d22\u5f15\u8bbf\u95ee\u5217\u503c\u3002<\/p>\n<\/p>\n
results = cursor.fetchall()<\/p>\n
for row in results:<\/p>\n
    print(row[0], row[1])<\/p>\n
<\/code><\/pre>\n<\/p>\n
5.2 MongoDB<\/h3>\n<\/p>\n
\u67e5\u8be2\u7ed3\u679c\u662f\u4e00\u4e2a\u5305\u542b\u6587\u6863\u7684\u6e38\u6807\uff0c\u53ef\u4ee5\u901a\u8fc7\u8fed\u4ee3\u8bbf\u95ee\u6bcf\u4e2a\u6587\u6863\u3002\u6bcf\u4e2a\u6587\u6863\u662f\u4e00\u4e2a\u5b57\u5178\uff0c\u53ef\u4ee5\u901a\u8fc7\u952e\u8bbf\u95ee\u503c\u3002<\/p>\n<\/p>\n
results = collection.find()<\/p>\n
for document in results:<\/p>\n
    print(document["key1"], document["key2"])<\/p>\n
<\/code><\/pre>\n<\/p>\n
5.3 Redis<\/h3>\n<\/p>\n
\u67e5\u8be2\u7ed3\u679c\u662f\u5355\u4e2a\u503c\uff0c\u53ef\u4ee5\u76f4\u63a5\u4f7f\u7528\u3002<\/p>\n<\/p>\n
value = r.get('key')<\/p>\n
print(value)<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u516d\u3001\u5173\u95ed\u6570\u636e\u5e93\u8fde\u63a5<\/p>\n<\/p>\n
\u5728\u5b8c\u6210\u6570\u636e\u5e93\u64cd\u4f5c\u540e\uff0c\u9700\u8981\u5173\u95ed\u6570\u636e\u5e93\u8fde\u63a5\u4ee5\u91ca\u653e\u8d44\u6e90\u3002<\/p>\n<\/p>\n
6.1 \u5173\u95edMySQL\u3001PostgreSQL\u3001SQLite\u8fde\u63a5<\/h3>\n<\/p>\n
cursor.close()<\/p>\n
conn.close()<\/p>\n
<\/code><\/pre>\n<\/p>\n
6.2 \u5173\u95edMongoDB\u8fde\u63a5<\/h3>\n<\/p>\n
client.close()<\/p>\n
<\/code><\/pre>\n<\/p>\n
6.3 \u5173\u95edRedis\u8fde\u63a5<\/h3>\n<\/p>\n
Redis\u8fde\u63a5\u901a\u5e38\u4e0d\u9700\u8981\u663e\u5f0f\u5173\u95ed\uff0c\u56e0\u4e3a\u5b83\u4eec\u662f\u957f\u8fde\u63a5\u3002<\/p>\n<\/p>\n
\u4e03\u3001\u5904\u7406\u5f02\u5e38<\/p>\n<\/p>\n
\u5728\u6267\u884c\u6570\u636e\u5e93\u64cd\u4f5c\u65f6\uff0c\u53ef\u80fd\u4f1a\u9047\u5230\u5404\u79cd\u5f02\u5e38\u60c5\u51b5\uff0c\u5982\u8fde\u63a5\u5931\u8d25\u3001SQL\u8bed\u6cd5\u9519\u8bef\u7b49\u3002\u9700\u8981\u4f7f\u7528\u5f02\u5e38\u5904\u7406\u673a\u5236\u6765\u6355\u83b7\u548c\u5904\u7406\u8fd9\u4e9b\u5f02\u5e38\u3002<\/p>\n<\/p>\n
7.1 MySQL\u3001PostgreSQL\u3001SQLite<\/h3>\n<\/p>\n
try:<\/p>\n
    conn = mysql.connector.connect(<\/p>\n
        host="your_host",<\/p>\n
        user="your_username",<\/p>\n
        password="your_password",<\/p>\n
        database="your_database"<\/p>\n
    )<\/p>\n
    cursor = conn.cursor()<\/p>\n
    cursor.execute("SELECT * FROM your_table")<\/p>\n
    results = cursor.fetchall()<\/p>\n
    for row in results:<\/p>\n
        print(row)<\/p>\n
except mysql.connector.Error as err:<\/p>\n
    print(f"Error: {err}")<\/p>\n
finally:<\/p>\n
    cursor.close()<\/p>\n
    conn.close()<\/p>\n
<\/code><\/pre>\n<\/p>\n
7.2 MongoDB<\/h3>\n<\/p>\n
try:<\/p>\n
    client = MongoClient("your_connection_string")<\/p>\n
    db = client.your_database<\/p>\n
    collection = db.your_collection<\/p>\n
    results = collection.find()<\/p>\n
    for document in results:<\/p>\n
        print(document)<\/p>\n
except Exception as e:<\/p>\n
    print(f"Error: {e}")<\/p>\n
finally:<\/p>\n
    client.close()<\/p>\n
<\/code><\/pre>\n<\/p>\n
7.3 Redis<\/h3>\n<\/p>\n
try:<\/p>\n
    r = redis.Redis(<\/p>\n
        host='your_host',<\/p>\n
        port=your_port, <\/p>\n
        password='your_password'<\/p>\n
    )<\/p>\n
    r.set('key', 'value')<\/p>\n
    value = r.get('key')<\/p>\n
    print(value)<\/p>\n
except redis.RedisError as e:<\/p>\n
    print(f"Error: {e}")<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u516b\u3001\u603b\u7ed3<\/p>\n<\/p>\n
\u4f7f\u7528Python\u64cd\u4f5c\u6570\u636e\u5e93\u7684\u57fa\u672c\u6b65\u9aa4\u5305\u62ec\u9009\u62e9\u5408\u9002\u7684\u6570\u636e\u5e93\u3001\u5b89\u88c5\u76f8\u5e94\u7684Python\u5e93\u3001\u8fde\u63a5\u6570\u636e\u5e93\u3001\u6267\u884cSQL\u8bed\u53e5\u548c\u5904\u7406\u67e5\u8be2\u7ed3\u679c\u3002\u5728\u5177\u4f53\u64cd\u4f5c\u8fc7\u7a0b\u4e2d\uff0c\u9700\u8981\u6839\u636e\u6240\u9009\u6570\u636e\u5e93\u7684\u7279\u70b9\u548c\u9700\u6c42\uff0c\u9009\u62e9\u5408\u9002\u7684\u5e93\u548c\u65b9\u6cd5\u3002\u901a\u8fc7\u4e0a\u8ff0\u6b65\u9aa4\uff0c\u60a8\u53ef\u4ee5\u7075\u6d3b\u5730\u4f7f\u7528Python\u4e0e\u5404\u79cd\u6570\u636e\u5e93\u8fdb\u884c\u4ea4\u4e92\uff0c\u4ece\u800c\u5b9e\u73b0\u6570\u636e\u7684\u5b58\u50a8\u3001\u67e5\u8be2\u3001\u66f4\u65b0\u548c\u5220\u9664\u7b49\u64cd\u4f5c\u3002\u5728\u5b9e\u9645\u5e94\u7528\u4e2d\uff0c\u8fd8\u9700\u8981\u6ce8\u610f\u5904\u7406\u5f02\u5e38\u60c5\u51b5\uff0c\u4ee5\u786e\u4fdd\u7a0b\u5e8f\u7684\u7a33\u5b9a\u6027\u548c\u53ef\u9760\u6027\u3002<\/p>\n<\/p>\n
\u76f8\u5173\u95ee\u7b54FAQs\uff1a<\/strong><\/h2>\n
 \u5982\u4f55\u9009\u62e9\u9002\u5408\u7684\u6570\u636e\u5e93\u7c7b\u578b\u4ee5\u4e0ePython\u914d\u5408\u4f7f\u7528\uff1f<\/strong>
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