如何仅添加键 s1 中的值

Question

students={1: {"pup1": "001", "s1": 10, "s2": 20},2: {"pup2": "124", "s1": 20, "s2": 30},3: {"pup3": "125", "s1": 30, "s2": 40}}项目清单

Answer 1

如果要将s1的所有值相加，需要遍历字典student的values()

    students={

1: {"pup1": "001", "s1": 10, "s2": 20},

2: {"pup2": "124", "s1": 20, "s2": 30},

3: {"pup3": "125", "s1": 30, "s2": 40}}

sum1 = 0

for data in students.values():

    sum1 += data['s1']

avg = sum1 / len(students)

print(sum1)

print(avg)