python——60个知识点奠定基础（四）

本文转载：https://xiaochuhe.blog.csdn.net/article/details/122539441
一、知识点31~35

#31.枚举排序 0,1,2…
tuple = ('a','b','c','d')
for i,j in enumerate(tuple):
    print (i,j)
#print ('1\n2')
#print ('1\t2')
#32.9*9乘法表练习
for i in range(1,10):
    print ("\t")
    for j in range (1,1+i):
        #result = i * j
        print ("%d * %d = %d"%(i,j,i*j),end= " ")
 
#33.函数的定义
from colorama import Fore
def chuhe():
    print ('\n_________________')
    print (Fore.RED+"这是一个函数")
chuhe()#函数的调用
 
#34.函数带参数的定义
def sum(a,b):
    c = a + b
    print (c)
sum(1,2)#输出3
 
#35.返回值计算结果
def sum(a,b):
    return a + b
vule = sum(1,2)#print(sum(1,2))
print (vule)

输出结果：

二、知识点36~40

#36.返回多个结果,逗号分割
def sum(a,b):
    shang = a/b
    yushan = a%b
    return (shang,yushan)
shang,yushang=sum(2,1)
print (shang,yushang)
 
#37.练习：自动输入数字，输出特定的长度
def length():
    a = int(input("数字："))
    print ('-'*a)
length()
 
#38.求三数字平均数
def sum():
    a = int(input('第一个数：'))
    b = int(input('第二个数：'))
    c = int(input('第三个数：'))
    add = (a + b + c) / 3
    print (add)
sum()
 
#39.输出给定长度为10次数练习
def sum():
    print ('-'*10)
def chuhe(m):
    i = 0
    while i<m:
        sum()
        i +=1
sum()
chuhe(int(input("请输出你要给定长度为10的次数：")))
 
#40.全局遍历与局部变量，局部变量调用全局变量
a = 100
def sum():
    global a
    print (a)#输出100
    a = 500
    print("%d" % a)  # 输出500
    print (a)#输出500
sum()

输出结果：