Question

quarter1 = [0, "1-Course1", "2-Course2", "3-Course3", "4-Course4", "5-Course5"]
quarter2 = [0, "1-Course1", "2-Course2", "3-Course3", "4-Course4", "5-Course5"]

pick_q = int(raw_input("Pick a quarter: "))
    if pick_q == 1:
        assignment = 0
        courses = int(raw_input("How many courses would you like to enroll? "))
        print quarter1
        while assignment < courses:
            course = int(raw_input("Please select the course you'd like to enroll into(1-5): "))
            newlist = []
            chosen_assignment = quarter1[course]
            newlist.append(chosen_assignment) 
            assignment += 1
print newlist

所以我试图制作这个课程，让学生可以在特定季度内报名参加不同的课程。我只把2季度作为例子。

我遇到的问题是我想从学生选择的课程中创建一个新的列表，例如，如果他希望课程1,2和3，那么新的列表应该能够打印出＃34;您已注册[Course1，Course2，Course3]＆＃34; 但是当我运行这个并尝试打印新列表时，只有用户在这种情况下输入的最后一个选项[Course3]而不是之前的其他选择。

它不一定要打印列表，但用户应该能够从原始列表中进行选择并收集此信息以创建新列表。我在列表中输入零，以便用户可以从列表索引1-5中选择一个数字。我是python的新手并试图弄明白这件事。提前谢谢!!

非常感谢任何其他推荐!!

Answer 1

基本上，newlist变量在循环内反复初始化。你只需要在循环之外声明它。

quarter1 = [0, "1-Course1", "2-Course2", "3-Course3", "4-Course4", "5-ourse5"]
quarter2 = [0, "1-Course1", "2-Course2", "3-Course3", "4-Course4", "5-Course5"]
newlist = [] # Declare it outside
pick_q = int(raw_input("Pick a quarter: "))
if pick_q == 1:
    assignment = 0
    courses = int(raw_input("How many courses would you like to enroll? "))
    print quarter1
    while assignment < courses:
        course = int(raw_input("Please select the course you'd like to enroll into(1-5): "))
        chosen_assignment = quarter1[course]
        newlist.append(chosen_assignment) 
        assignment += 1
print newlist

从用户输入创建新列表（Cicles） - Python

1 个答案: