python 列表推导式使用详解

# 创建一个0-10的列表
a = [x for x in range(11)]
print(a)
"""
输出结果:
[0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
"""

a = []
for x in range(10):
  a.append(x)

# 创建一个1-10之间偶数的列表
a = [x for x in range(11) if x%2==0]
"""
输出结果：
[0, 2, 4, 6, 8, 10]
"""

a = []
for x in range(11):
  if x%2 == 0:
    a.append(x)

a = [(x,y) for x in range(3) for y in range(3)]
print(a)
"""
输出结果：
[(0, 0), (0, 1), (0, 2), (1, 0), (1, 1), (1, 2), (2, 0), (2, 1), (2, 2)]
"""

a = []
for x in range(3):
  for y in range(3):
    a.append((x,y))

a = []
for x in range(1,100,3):
  a.append([x,x+1,x+2])

a = [[x,x+1,x+2] for x in range(1,100,3)]