零基础自学python复习基础 每日一练 【一个小时的练习】

        1.练习一

def d(object):
    def d(k1,k2):
        print('关键字实参',k1)
        print('位置实参',k2)
        k1 = 300
        k2.append(30)
        print('关键字实参', k1)
        print('位置实参', k2)
x1 = 21
x2 = (1,2,3,7,9)
print(x1)
print(x2)
d(x1)
d(x2)
print(x1)
print(x2)

        2.练习二

def x(h,d):
    print('购买手机配置：',h)
    print('购买手机品牌：',d)
x('高配','小米')
x(h = '高配', d = '小米')
def x_(k,k1):
    print('早餐包子纯牛奶:',k)
    print('早餐包子豆浆:',k1)
x_(k = '套餐一',k1 = '套餐二')
def k(d,d0):
    print('铠甲勇士',d)
    print('铠甲勇士刑天',d0)
k(d  = '52集',d0 = '60集')

        3.练习三

for x in range(0,4):
    print(x)
x = (1,2,3,4,5,6,7,9)
for x in x:
    print(x)
x_ = {1:4,4:5,2:9,7:1}
for x_ in x_:
    print(x_,type(x_),id(x_))
f = (9,8,7,6,5,4,3,2,1)
for f in f:
    print(f)

        4.练习四

p = 'python'
x_0 = '人生苦短我用python'
for p in p:
    print(p)
    for x_ in x_0:
        print(x_)
x = '下载体验'
print(x,type(x),id(x))
print('-----------------cf登录页面------------------------')
print('ttttt请输入QQ号码')
print('ttttt请输入密码')
print('ttttt保存密码     自动登录')
print('ttttttttt登录')
print('-----------------登录成功------------------------')

        5.练习五

import numpy as cf
f = cf.array([1,2,3,4,5,6,7,8,9])
c = cf.array([9,8,7,6,5,4,3,2,1])
print(f,type(f))
print(c,type(c))
#使用array创建多维数组
import numpy as cf
f = cf.array([[1,2,3],[4,5,6],[7,8,9]])
y = cf.array([[9,8,7],[6,5,4],[3,2,1]])
print(f,type(f))
print(y,type(y))
#使用arange()函数创建差数组
import numpy as cf
a = cf.arange(1,2,3)
print(a)
import  numpy as cf
h = cf.arange(7,9,3)
print(h)
#起始值默认为1     步长为0  结束值为4
import  numpy as cf
u = cf.arange(1,4)
print(u)
import numpy as cf
q =cf.arange(4)
print(q)

        6.练习六

import numpy as cf
c  = cf.random.rand(9)
c_ = cf.random.randn(9)
c_1 =cf.random.randint(9)
print(c.shape)
print(c_.shape)
print(c_1)
import numpy as cf
c = cf.array(24)
print(c)
import numpy as cf
e = cf.array([1,2,3,4,5,6,7,8,9])
e_1 = cf.array([[1,2,3],[4,5,6],[7,8,9]])
e_ = cf.array([[4,5,6],[7,8,9],[9,8,7],[3,2,1]])
print(e.ndim)
print(e_1.ndim)
print(e_.ndim)

        7.练习七

import numpy as cf
h = cf.array([9,3,1])
print(h[0])
print(h[1])
import numpy as cf
g = cf.array([1,2,3])
print(g[0] + g[1])
import numpy as cf
k = cf.array([[9,3,1,0],[1,3,9,3],[9,3,1,1],[1,3,9,1]])
print(k[0,1])
print(k[0,2])
print(k[2,3])

        8.练习八

import numpy as cf
c = cf.array([0,1,2,3,4,5,6,7,8,9])
print(c[0:9])
print(c[0:3:1])
print(c[3:7:2])
print(c[:9])
import numpy as cf
c = cf.array([1,2,3,9,7])
print(c[:4])
#负裁切
import numpy as cf
c = cf.array([9,7,3,4,1])
print(c[:-1])
print(c[0:-1])
print(c[-4:-1])
print(c[-4:0])

        9.练习九

import numpy as cf
c = cf.array([1,2,3,4,7,9])
print(c[0:5:2])
print(c[0:0:1])
print(c[:3:])
print(c[::2])
import numpy as cf
c = cf.array([1,3,9,7])
print(c[::1])
print(c[::3])