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- #! /usr/bin/env python
- #coding:utf-8
- """
- 问题
- 定义一个20*5的二维数组,用来存储某班级20位学员的5门课的成绩;这5门课按存储顺序依次为:core C++,coreJava,Servlet,JSP和EJB。
- (1)循环给二维数组的每一个元素赋0~100之间的随机整数。
- (2)按照列表的方式输出这些学员的每门课程的成绩。
- (3)要求编写程序求每个学员的总分,将其保留在另外一个一维数组中。
- (4)要求编写程序求所有学员的某门课程的平均分。
- """
- from __future__ import division
- import random
- def score(score_list,course_list,student_num):
- course_num = len(course_list)
- every_score = [[score_list[j][i] for j in range(course_num)] for i in range(student_num)]
- every_total = [sum(every_score[i]) for i in range(student_num)]
- ave_course = [sum(score_list[i])/len(score_list[i]) for i in range(len(score_list))]
- return (every_score,every_total,ave_course)
- if __name__=="__main__":
- course_list = ["C++","Java","Servlet","JSP","EJB"]
- student_num = 20
- score_list = [[random.randint(0,100) for i in range(student_num)] for j in range(len(course_list))]
- for i in range(len(course_list)):
- print "score of every one in %s:"%course_list[i]
- print score_list[i]
- every_score,every_total,ave_one_course = score(score_list,course_list,student_num)
- print "\n"
- print "NEXT IS EVERY ONE SCORE IN EVERY COURSE:"
- for name in course_list:
- print name,
- print "\t"
- print every_score
- print "\n"
- print "every one all score:\t",every_total
- print "every course of average score:\t",ave_one_course
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