01-18 86—90

______egon新书python全套来袭请看：https://egonlin.com/book.html

86、下面的函数,哪些会输出1,2,3三个数字

def func1():
    for i in range(3):
        print(i)
        a_list = [0, 1, 2]

    for i in a_list:
        print(i + 1)

def func2():
    i = 1

    while i < 3:
        print(i)

        i += 1

def func3():
    for i in range(3):
        print(i + 1)

# 答案
func3()

87、以下函数需要在其中引用一个全局变量k,请填写语句

def fun():
   ________
	 k=k+1
	 
# 答案:
global k

88、请把以下函数转化为python lambda匿名函数

def add(x,y):
	 return x+y

# 答案
print(lambda x, y: x + y)

89、阅读以下代码,并写出程序的输出结果

my_dict = {"a":0,"b":1} 2.
def func(d): 
	 d["a"]=1 
	 return d
	 
func(my_dict) 
my_dict["c"]=2 
print(my_dict)

# 答案
{'a': 1, 'b': 1, 'c': 2}

90、填空题

 # 有函数定义如下
def calc(a,b,c,d=1,e=2):
	 return (a+b)*(c-d)+e

# 请分别写出以下标号代码的输出结果, 如果出错请写出 Error
print(calc(1,2,3,4,5)) # ____2
print(calc(1,2,3)) # ____8
print(calc(1,2)) # ____报错 missing 1 required positional argument: 'c'
print(calc(1,2,3,e=4)) # ____10
print(calc(e=4, c=5, a=2,b=3)) # ____24 
print(calc(1,2,3, d=5, 4)) # ____SyntaxError