Python拥有独特且易于学习的语法。下面提供了一些最重要的Python技巧。你可以将这些技巧添加到你的Python技能库中。

1. 将字符串转换为列表

string = "TechGeekBuzz"
print(list(string))

['T', 'e', 'c', 'h', 'G', 'e', 'e', 'k', 'B', 'u', 'z', 'z']

2. 反转字符串

string = "TechGeekBuzz"
print(string[ : :-1])

zzuBkeeGhceT

3.列表创建为字符串

my_list = ['this', "is", "an", "article","from", "TechGeekBuzz"]
print("-".join(my_list))

this-is-an-article-from-TechGeekBuzz

4. 根据索引值，结合两个可迭代对象

a = ['one', 'two','three']
b = [1 , 2 , 3 ]
c= zip(a,b)
print(list(c))

[('one', 1), ('two', 2), ('three', 3)]

5. 从可迭代对象中获取最大值最小值

my_list = [1, 2, 3,200,12,362]
print("Max is:", max(my_list))
print("Minimum value is:",min(my_list))

Max is: 362
Minimum value is: 1

6. 执行写在字符串中的命令

string = 'print("The sum of 10+10 is:", 10+10)'
eval(string)

The sum of 10+10 is: 20

7. 制作一个长度为0到N的列表

n= 20
my_list = list(range(0,n,2))
print(my_list)

[0, 2, 4, 6, 8, 10, 12, 14, 16, 18]

8.列出字符串的所有子字符串

main = "hello"
substrings = [main[i: j] for i in range(len(main)) for j in range(i + 1, len(main) + 1)]
print(substrings)

['h', 'he', 'hel', 'hell', 'hello', 'e', 'el', 'ell', 'ello', 'l', 'll', 'llo', 'l', 'lo', 'o']

9. 转置矩阵

matrix = [[1, 2, 3], [4, 5, 6], [7, 8, 9]]
transpose = list(zip(*matrix))
print(transpose)

[(1, 4, 7), (2, 5, 8), (3, 6, 9)]

10. 合并多个字典

a = {'a':2, 'A':50}
b = {'b':4, 'B':34}
c = {'c':2, 'C':45}
combine = {**a, **b, **c}
print(combine)

{'a': 2, 'A': 50, 'b': 4, 'B': 34, 'c': 2, 'C': 45}