#student_scores
def read_scores(filename):
    student_scores = {}
    try:
        file = open(filename, 'r',encoding='utf-8')
        next(file)  # 跳过第一行（标题行）
        for line in file:
            name, chinese, math, english = line.strip().split()
            scores = [float(chinese), float(math), float(english)]
            student_scores[name] = scores
        return student_scores
    except FileNotFoundError:
        print(f"错误：文件'{filename}'不存在。")
        return {}  # 返回空字典
    except ValueError:
        print("文件格式错误，每行应该包含姓名和三门课程的成绩。")
        return {}  # 返回空字典
    except Exception as e:
        print(f"读取文件时发生错误：{e}")
        return {}  # 返回空字典

def calculate_averages(student_scores):
    averages = {}
    for name, scores in student_scores.items():
        averages[name] = sum(scores) / len(scores)
    return averages

def write_averages_to_file(filename, averages):
    try:
        file=open(filename, 'w')
        file.write("姓名 平均成绩\n")
        for name, average in averages.items():
            file.write(f"{name} {average:.2f}\n")
    except Exception as e:
        print(f"写入文件时发生错误：{e}")


# 主程序
scores_filename = 'student_scores.txt'
averages_filename = 'student_averages.txt'

# 读取成绩
student_scores = read_scores(scores_filename)

# 如果 student_scores 是空字典，则不进行后续操作
if student_scores:
    # 计算平均成绩
    averages = calculate_averages(student_scores)

    # 将平均成绩写入文件
    write_averages_to_file(averages_filename, averages)
else:
    print("没有数据可用于计算平均成绩。")


fo=open('student_scores.txt','r',encoding='UTF-8')
fo_line=fo.readlines()
infor={}
for i in range(1,len(fo_line)):
    name,C,M,E=fo_line[i].strip().split(' ')
    print(name,C,M,E)
    infor[name]=(float(C),float(M),float(E))
print(infor)