如何查看mysql实例

mysql -u username -p

SHOW DATABASES;

import requests
import json

# 替换为你的SecretId和SecretKey
secret_id = 'your_secret_id'
secret_key = 'your_secret_key'

url = "https://cdb.tencentcloudapi.com/"
headers = {
    "Content-Type": "application/json",
    "Host": "cdb.tencentcloudapi.com"
}

params = {
    "Action": "DescribeDBInstances",
    "Version": "2017-03-20",
    "Region": "ap-guangzhou"
}

# 签名过程（简化示例）
import hmac
import hashlib
import base64
from datetime import datetime

timestamp = int(datetime.utcnow().timestamp())
params['Timestamp'] = timestamp
params['Nonce'] = 123456
params['SecretId'] = secret_id

sorted_params = sorted(params.items(), key=lambda x: x[0])
string_to_sign = "POST" + url.split("//")[1] + "/?" + "&".join(["{}={}".format(k, v) for k, v in sorted_params])

signature = base64.b64encode(hmac.new(secret_key.encode('utf-8'), string_to_sign.encode('utf-8'), hashlib.sha1).digest()).decode('utf-8')
params['Signature'] = signature

response = requests.post(url, headers=headers, data=json.dumps(params))
result = response.json()

print(result)