编写一个能统计一组输入的学生成绩数据特征的小程序 python

以下是一个简单的能统计学生成绩数据特征的Python程序：

def read_grades():
    grades = []
    num_students = int(input("请输入学生的数量："))
    for i in range(num_students):
        grade = float(input("请输入学生的成绩："))
        grades.append(grade)
    return grades

def calculate_average(grades):
    total = sum(grades)
    average = total / len(grades)
    return average

def calculate_highest(grades):
    highest = max(grades)
    return highest

def calculate_lowest(grades):
    lowest = min(grades)
    return lowest

def calculate_range(grades):
    highest = calculate_highest(grades)
    lowest = calculate_lowest(grades)
    grade_range = highest - lowest
    return grade_range

def calculate_variance(grades):
    average = calculate_average(grades)
    variance = sum((grade - average) ** 2 for grade in grades) / len(grades)
    return variance

def calculate_standard_deviation(grades):
    variance = calculate_variance(grades)
    standard_deviation = variance ** 0.5
    return standard_deviation

def main():
    grades = read_grades()
    print("平均成绩：", calculate_average(grades))
    print("最高成绩：", calculate_highest(grades))
    print("最低成绩：", calculate_lowest(grades))
    print("成绩范围：", calculate_range(grades))
    print("成绩方差：", calculate_variance(grades))
    print("成绩标准差：", calculate_standard_deviation(grades))

if __name__ == "__main__":
    main()

这个程序首先会要求用户输入学生的数量，然后逐个输入每个学生的成绩。接着，程序会计算这组成绩的平均值、最高值、最低值、成绩范围、方差和标准差，并将结果输出。