9 篇笔记 写笔记

1. #0

   super

   sup***[email protected]

   13

   参考方法:

   #!/usr/bin/python
   # -*- coding: UTF-8 -*-
   x = [[12,7,3],
    [4,5,6],
    [7,8,9]]
   y = [[5,8,1],
    [6,7,3],
    [4,5,9]]
   z= []
   for i in range(3):
    z.append([])
   for i in range(3):
    for j in range(3):
    z[i].append(x[i][j]+y[i][j])
   print z
   

   super

   sup***[email protected]

   9年前 (2017年04月01日)
2. #0

   lll

   279***[email protected]

   2

   参考方法:

   #!/usr/bin/python
   # -*- coding: UTF-8 -*-
   x=[[12,7,3],
    [4 ,5,6],
    [7 ,8,9]]
   y=[[5,8,1],
    [6,7,3],
    [4,5,9]]
   c=[]
   d=[]
   for index,element in enumerate(x):
    for i in range(len(element)):
    m=x[index][i]+y[index][i]
    c.append(m)
    if len(c)==3:
    d.append(c)
    c=[]
   print d
   

   lll

   279***[email protected]

   9年前 (2017年04月20日)
3. #0

   朦胧

   253***[email protected]

   1

   参考方法:

   # coding:utf-8
   import numpy as np
   X = [[12,7,3],
    [4 ,5,6],
    [7 ,8,9]]
   Y = [[5,8,1],
    [6,7,3],
    [4,5,9]]
   Z=np.zeros(shape=(len(X),len(X[0])))
   for i in range(0,len(X)):
    for j in range(0,len(X[0])):
    Z[i][j]=X[i][j]+Y[i][j]
   print(Z)
   

   朦胧

   253***[email protected]

   9年前 (2017年06月13日)
4. #0

   qingfeng

   297***[email protected]

   2

   参考方法:

   #!/usr/bin/python
   # -*- coding: UTF-8 -*-
   X = [[12,7,3],
    [4 ,5,6],
    [7 ,8,9]]
   Y = [[5,8,1],
    [6,7,3],
    [4,5,9]]
   m = [[],
    [],
    []]
   for (i,j,k) in zip(X,Y,range(3)):
    for (a,b)in zip(i,j):
    m[k].append(a+b)
   for r in m:
    print r
   

   qingfeng

   297***[email protected]

   9年前 (2017年06月13日)
5. #0

   du_solong

   157***[email protected]

   17

   使用 numpy:

   #!/usr/bin/python
   # coding:utf-8
   import numpy as np
   x = np.array( [[12,7,3],
    [4 ,5,6],
    [7 ,8,9]])
   y = np.array( [[5,8,1],
    [6,7,3],
    [4,5,9]])
   z = x+y
   print z
   

   du_solong

   157***[email protected]

   9年前 (2017年06月14日)
6. #0

   hello world

   1@q***om

   9

   Python3 使用 random 随机生成两个矩阵:

   import random
   data1 = [[random.randint(1,100) for i in range(3)] for j in range(3)]
   data2 = [[random.randint(1,100) for i in range(3)] for j in range(3)]
   print("data1:",data1)
   print("data2:",data2)
   data3 = data1[:]
   for i in range(len(data1)):
    for j in range(len(data1[i])):
    data3[i][j] = data1[i][j] + data2[i][j]
   print("data3:",data3)
   

   hello world

   1@q***om

   9年前 (2017年06月25日)
7. #0

   ray

   117***[email protected]

   0

   参考方法:

   # -*- coding: utf-8 -*-
   def matrix():
    X = [[12,7,3],
    [4 ,5,6],
    [7 ,8,9]]
    Y = [[5,8,1],
    [6,7,3],
    [4,5,9]]
    a_list=[]
    a_list_1=[]
    a_list_2=[]
    a_list_3=[]
    for i in range(3):
    for j in range(3):
    if i==0:
    temp=a_list_1
    elif i==1:
    temp=a_list_2
    else:
    temp=a_list_3
    temp.append(X[i][j]+Y[i][j])
    a_list.insert(0,a_list_1)
    a_list.insert(1,a_list_2)
    a_list.insert(2,a_list_3)
    print(a_list)
   matrix()
   

   ray

   117***[email protected]

   9年前 (2017年08月11日)
8. #0

   sun_shine

   101***[email protected]

   1

   参考方法:

   #!/usr/bin/python
   # -*- coding: UTF-8 -*-
   import numpy as np
   a=np.random.randint(0,100,9).reshape(3,3)
   b=np.random.randint(0,100,9).reshape(3,3)
   print(a+b)
   

   sun_shine

   101***[email protected]

   9年前 (2017年08月13日)
9. #0

   奚适

   xnx***[email protected]

   3

   使用匿名函数:

   #!/usr/bin/python
   # -*- coding: UTF-8 -*-
   X = [[12,7,3],
    [4,5,6],
    [7,8,9]]
   Y = [[5,8,1],
    [6,7,3],
    [4,5,9]]
   Z = []
   for i in range(3):
    zz = map(lambda a,b:a+b, X[i],Y[i])
    Z.append(zz)
   print Z

   奚适

   xnx***[email protected]

   9年前 (2017年12月21日)