n=int(input())
employees=list()
for i in range(n):
b=list(input().split())
if"@xjtu.edu.cn" not in b[2]:
d=list(b[2].split('@'))
b[2]=d[0]+"@xjtu.edu.cn"
employees.append((b[0],b[1],b[2]))
for i in range(n):
print(employees[i],end="\n")```
n=int(input())看看怎么输入的,是不是整数
employees=list()
->
employees=[]
https://github.com/wwdguu/pyCFTrackers
https://github.com/opencv/opencv/blob/master/samples/python/camshift.py