提取数据集中cname名字结尾是U结尾的记录，将记录中的内容 提取并保存至clist中

coursdata=[ (r':(.)\sctime:(.)>score=(.*)')
'cname:shuxue ctime:72>cscore=6',
'cname:tiyu ctime:64>cscore=5',
'cname:shudian ctime:83>cscore=7',
'cname:yingyu ctime:80>cscore=9',
'cname:dashuju ctime:128>cscore=12',
'cname:bianchengjichu ctime:32>cscore=3',
'cname:pingmiansheji ctime:16>cscore=5',
]

clist=[]
for i in coursdata:
    if i.split()[0].upper().endswith('U'):
        clist.append(i)
print(clist)

或

clist=[i for i in coursdata if i.split()[0].upper().endswith('U')]