Question

我正在尝试从文本文件中对测验分数的值求和。我需要将每个人的所有测验得分值相加，以找到测验得分的班级平均值。到目前为止，我的程序将对每一行的分数求和，但它不会将每一行相加。如何将每一行相加？这是我的文本文件，每个人在一行（总共10人）

Aenci, Iaron; 0905229; Quizzes 90%, 90%, 70%; Individual projects 80%, 70%, 90%; Labs 80%, 80%, 90%; Midterm 90%; Group Projects 90%, 80%, 70%; Final 90%

Yarton, Nabrina; 0908843; Quizzes 90%, 60%, 70%; Individual projects 90%, 70%; Labs 80%, 80%, 90%; Midterm 90%; Group Projects 90%, 80%, 70%; Final 90%

Jayer, Rody; 0908845; Quizzes 90%, 70%, 80%; Individual projects 90%, 60%, 50%; Labs 30%, 70%, 80%; Midterm 90%; Group Projects 90%, 70%, 80%; Final 80%

def cc_quiz(file):
    for line in open(file):
        student_list = line.split()
        count = len(student_list)
        a = str(student_list)
        start_position = a.find('Quizzes')
        end_position = a.find('Individual')
        class_quiz = a[start_position + 8: end_position - 3]
        cq = class_quiz.replace('%', '')
        cq1 = cq.replace(',', '')
        cq2 = cq1.replace(';', '')
        cq3 = cq2.replace("'", '')
        c = cq3.split()
        d = sum(float(x) for x in c)
        print(d)

输出：

我想要添加250 + 220 + ... + 240

Answer 1

只需创建另一个变量，并将变量d的内容添加到每个迭代的变量中。最后在最后打印创建的临时变量（for循环旁边的）。

def cc_quiz(file):
    su = 0
    for line in open(file):
        student_list = line.split()
        count = len(student_list)
        a = str(student_list)
        start_position = a.find('Quizzes')
        end_position = a.find('Individual')
        class_quiz = a[start_position + 8: end_position - 3]
        cq = class_quiz.replace('%', '')
        cq1 = cq.replace(',', '')
        cq2 = cq1.replace(';', '')
        cq3 = cq2.replace("'", '')
        c = cq3.split()
        d = sum(float(x) for x in c)
        su += d
    print su

来自多行（python）的文本文件中的求和值

1 个答案: