python字典合并

a = {
  'k1':'',
  'k2':'',
  'k3':'',
}

b = {
  'k4':'',
  'k5':'',
  'k6':'',
}

# solution 1
c = dict(**b,**a)

# solution 2
c = dict(b,**a)

# solution 3
c = b.copy()
c.update(a)

参考