摘要：
from flask import Flask from flask_cors import CORS app = Flask(__name__) CORS(app) @app.route("/") def helloWorld(): return "Hello, cross-origin-worl 阅读全文
摘要：
```
search ⇒ find something anywhere in the string and return a match object.
match ⇒ find something at the beginning of the string and return a match object. # example code:
string_with_newlines = "... 阅读全文
摘要：
jupyter notebook快捷键的使用 阅读全文