技術標籤：python使用技巧python

一、利用zip函式將兩個列表(list)組成字典(dict)

keys = ['a', 'b', 'c']
values = [1, 2, 3]
dictionary = dict(zip(keys, values))
print(dictionary)

二、 合併兩列表

a = [1, 2, 3]
b = (4, 5, 6)
z = zip(a, b)
for i in z:
    print(i)

按行輸出：

a = [ [1,2,3], [4,5,6], [7,8,9] ]

for v in a:
	print(v)

轉為字典行駛：

a = [1, 2, 3]
b = (4, 5, 6)
z = zip(a, b)
z2 = list(z)
z3 = dict(z2)
print(z3)

三、去掉zip中的括號後轉化為陣列與列表

b = [(0, 1), (1, 2), (2, 3), (3, 4), (4, 5), (5, 6), (6, 7)]
np.array(b)
Out[86]: 
array([[0, 1],
       [1, 2],
       [2, 3],
       [3, 4],
       [4, 5],
       [5, 6],
       [6, 7]])
(np.array(b)
 
).tolist()
Out[87]: [[0, 1], [1, 2], [2, 3], [3, 4], [4, 5], [5, 6], [6, 7]]

四、將zip合併的資料儲存在csv

a=[1,2,3]
b=[4,5,6]
zip(a,b)
Out[93]: <zip at 0x1a8ebced388>
import csv
with open('text.csv', 'w') as f:
   ...:     writer = csv.writer(f, delimiter='\t')
   ...:     writer.writerows(zip(a,b))