https://blog.csdn.net/weixin_35757704/article/details/90234427
#for简写
alist = ["123", "456"]
[print(i) for ylist in alist for i in ylist]
#if简写
y = 1
x = 1 if y > 0 else -1
print(x)
#for if 简写组合
x = [1,2,3,4,5,6,7]
[print(i) for i in x if i > 3 ]
#map 用法
def sp(x):
return 2*x
alist = [1,2,3,4,5]
b = map(sp,alist)
print(list(b))
#lambda 用法
x = 3
b = (lambda k: k+3)(x)
print(b)
#map lambda组合
c = list(map(lambda x: x * 2, [1, 2, 3, 4, 5]))
print(c)
