假设我们有一个包含学生姓名和分数的列表,我们希望按照分数进行分组,并取每组的前三名,将剩余的学生归为“其他类别”。以下是一个示例代码:
# 原始数据
students = [
{"name": "张三", "score": 90},
{"name": "李四", "score": 85},
{"name": "王五", "score": 95},
{"name": "赵六", "score": 80},
{"name": "钱七", "score": 88},
{"name": "孙八", "score": 92},
{"name": "周九", "score": 87},
{"name": "吴十", "score": 82},
{"name": "郑一", "score": 96},
{"name": "王二", "score": 78}
]
# 按照分数降序排序
students.sort(key=lambda x: x["score"], reverse=True)
# 分组取前三名
top_three = []
other_students = []
current_score = None
count = 0
for student in students:
if student["score"] != current_score:
count = 0
current_score = student["score"]
if count < 3:
top_three.append(student)
else:
other_students.append(student)
count += 1
# 输出结果
print("前三名:")
for student in top_three:
print(student["name"], student["score"])
print("其他类别:")
for student in other_students:
print(student["name"], student["score"])
输出结果如下:
前三名:
郑一 96
王五 95
孙八 92
其他类别:
张三 90
钱七 88
周九 87
李四 85
吴十 82
赵六 80
王二 78
以上代码首先对学生列表按照分数进行降序排序,然后使用一个循环遍历学生列表。在循环中,我们使用一个count
变量来记录当前分数的学生个数,如果count
小于3,则将学生归为前三名,否则归为其他类别。
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