将字符串转换成字典

将字符串 “k:1|k1:2|k2:3|k3:4”转换成字典{“k”:1,”k1”:2,”k2”:3,”k3”:4},请写出代码。（代码题）

a = “k:1|k1:2|k2:3|k3:4”
b = a.split("|")
c = dict()
for i in b:
    d = i.split(':')
    c[d[0]] = int(d[1])
print(c)