# 通过for循环，对所有级别为1的员工，级别上升1级，薪资增加1000元
my_dict = {
    "王力宏": {"部门": "科技部", "工资": 3000, "级别": 1},
    "周杰伦": {"部门": "市场部", "工资": 5000, "级别": 2},
    "林俊杰": {"部门": "市场部", "工资": 7000, "级别": 3},
    "张学友": {"部门": "科技部", "工资": 4000, "级别": 1},
    "刘德华": {"部门": "市场部", "工资": 6000, "级别": 2},
}
print(my_dict)

for name in my_dict.keys():
    if my_dict[name]["级别"] == 1:
        my_dict[name]["工资"] += 1000
        my_dict[name]["级别"] += 1
print(my_dict)