[Python] for in单行循环生成dict

d = {x:x*10 for x in range(3)}
print(d)
d1 = [x*10 for x in range(3)]
print(d1)

{0: 0, 1: 10, 2: 20}
[0, 10, 20]

d=dict((k,'sss') for k in ('modelID', 'userIP'))
print(d)

{'userIP': 'sss', 'modelID': 'sss'}