函式的預設引數default arguments
：在定義函數時為某些參數設置的預設值，當呼叫函數時省略呼叫該參數，就會使用預設值

def greet(name, greeting="Hello"):
    print(f"{greeting}, {name}")
greet("Rose")


Hello, Rose

def greet(name, greeting="Hello"):
    print(f"{greeting}, {name}")
greet("Rose", "Hi")


Hi, Rose

關鍵字參數 Keyword Arguments

def hello(greeting, title, first_name, last_name):
    print(f"{greeting}, {title}, {first_name}, {last_name}")
hello("Hello~", "Miss", "Tina", "Wang")


Hello~ Miss Tina Wang

輸入參數數值

def hello(greeting, title, first_name, last_name):
    print(f"{greeting}, {title}, {first_name}, {last_name}")

hello(greeting="Hello~~", title="Mr.",first_name="Jhon", last_name="Chen")

Hello~~ Mr. Jhon Chen