[Flask] static file的存取

參考這邊：
http://docs.jinkan.org/docs/flask/quickstart.html#routing

在route規則中可以這樣寫

@app.route('/user/<username>')
def show_user_profile(username):
    # show the user profile for that user
    return 'User %s' % username

網頁url/user/username  這個username的字會被username變數接收
所以打入url/user/malo  --> username就會是malo

另一種寫法，把post_id轉為int型態
<converter:variable_name>

@app.route('/post/<int:post_id>')
def show_post(post_id):
    # show the post with the given id, the id is an integer
    return 'Post %d' % post_id

中文的資料只有說3種converter
但在這邊，寫了好幾個converter
http://flask.pocoo.org/docs/0.11/quickstart/#variable-rules
string和path主要分別在於path可以包含slash

@app.route('/user/<username>')
def show_user_profile(username):
    # show the user profile for that user
    return 'User %s' % username

@app.route('/post/<int:post_id>')
def show_post(post_id):
    # show the post with the given id, the id is an integer
    return 'Post %d' % post_id

The following converters exist:

string	accepts any text without a slash (the default)
int	accepts integers
float	like int but for floating point values
path	like the default but also accepts slashes
any	matches one of the items provided
uuid	accepts UUID strings