1. began to realize flask

1. pip installation package flask 
PIP the install flask 
2. Use of basic flask 
from flask import Flask # Import flask packet 

app = Flask (__ name__) # instantiated objects flask, __name__ parameters 

to create a view route # 
@ app.route ( '/') 
DEF the Hello (): 
    return "the Hello" 

# editing program entry 
IF __name__ == '__main__': 
　　# operation creates a flask example App 
    app.run () 


3. recognize flask ----- start from the source