快速问题...我一直在研究一个小程序，该程序将根据“作业”，“测验”和“测试”以及所获得的字母成绩来计算最终的成绩百分比。这是一个正在测试新事物的程序，我想知道如何在一个类中或一个类中使用所有这些？
我考虑过按原样保留功能性内容，而只是使用一个类来基本上打印出一个漂亮的字符串，包括学生的姓名，最后的字母等级和百分比。我什至无法在类里面简单打印出外部数据。有任何想法吗？
另外，是否有任何方法可以让用户输入创建全新的空字典？ (也许如果可以创建多个词典，我可以制作一个函数或方法来计算类(class)平均值)
我感谢您的帮助。
谢谢!
student1 = {}
student = [student1]
def maker_d():
name = raw_input("Please enter the student's name: ")
student1['Name'] = name
homework = raw_input("Please enter all of the student's homework grades separated by a space: ")
homework = [float(i) for i in homework.split()]
student1['homework']= homework
quizzes = raw_input("Please enter all of the student's quiz scores separated by a space: ")
quizzes = [float(i) for i in quizzes.split()]
student1['quizzes'] = quizzes
tests = raw_input("Please enter all of the student's test scores separated by a space: ")
tests = [float(i) for i in tests.split()]
student1['tests'] = tests
def average(student):
return sum(student) / len(student)
def get_average(student):
h = average(student['homework'])
q = average(student['quizzes'])
t = average(student['tests'])
total_average = (h * 0.1) + (q * 0.3) + (t * 0.6) #designates homework as 10%, quizzes as 30% and tests as 60% of final grade average
return total_average
def get_letter_grade(score):
if score >= 90:
return "A"
elif 80<= score <90:
return "B"
elif 70 <= score < 80:
return "C"
elif 60 <= score < 70:
return "D"
else:
return "F"
def get_class_average(student):
total = 0
for each in student:
total += get_average(each)
return total / len(student)
return get_class_average(get_average[student])
class FinalGradePrinter(object):
def __init__(self,name):
self.name = name
def __str__(self,name):
print "% ',' your final grade is a %s based on your overall percentage of %f" % (self.name)
def main():
maker_d()
print get_class_average(student)
print get_letter_grade(get_class_average(student))
if __name__ == '__main__':
main()
最佳答案
类是要在应用程序中使用的对象的模板，对象旨在通过封装“事物”的属性来封装“事物”，以及用于这些属性的函数(例如，基于属性值计算值) ，更改它们等)。这个主题涉及太多，因此在这里不做更多介绍，值得对面向对象编程进行一些研究。
就您而言，您肯定有一个将Student作为类的情况，这是代码中的“事物”，它具有属性，并且还具有与这些属性一起使用的功能。下面是创建自己的Student类的一个很好的起点-尝试填写该类并修改您的代码以使用它(这将需要学习面向对象的编程)是一个很好的练习。随着示例的发展，您可能还希望为测验，测试和作业创建类。
class Student:
# Constructor
def __init__(self, name, homework, quizzes, tests):
self.name = name
self.homework = homework
self.quizzes = quizzes
self.tests = tests
# Function to return average for this student
def get_average(self):
h = average(self.homework)
...
return total_average
祝好运并玩得开心点!
关于python - 上课和下课工作，我们在Stack Overflow上找到一个类似的问题：https://stackoverflow.com/questions/17442567/