自定義錯誤型別

class XxxError(Exception):
    def __init__(self , message):
        self = Exception("xxxxx") 
        // Exception.__init__(self)
        self.message = message 

自行錯誤丟擲

def power(x, n=2) :
    if x== 0 and n ==0:
        raise ValueError ("....")
    print ( x ** n)


power(0,0)
 

函式中的變長引數

def add_list(*elements , l1=[]):

　　length = len(elements)

　　n = 0

　　while n < length :

　　　　l1 = l1 + elements[n]
　　　　n += 1
　　return l1 //預設引數應該指向不變物件

def add(a, b, *numbers ,exten=0):
    length = len(numbers)
    n = 0
    sum_ = 0
    while n < length:
        sum_ 
 
+= numbers[n]
        n += 1
    return a+b+sum_ + exten


r = add(5,6,6,6,6,6,6,7,8,9)

不定長形參的應用

def print_information ( name , ** values):
    print("name:" , name)
    for key , value in values.item():
        print(key , ":" , value)

print_information("xxx" , age="18" , city="guangzhou
 
")

錯誤處理

def xxx(name , age , ...):
    if age > 40:
        raise xxxError()
    return "xxxx"



try :
    result = xxx("xxx" , 50 , ...)
except xxxError as ex1:
    print ("xxx..." , ex1)
except xxxError as ex2:
    ...

finally:
    ...

五、python所有的標準異常類：