index
first=index+1
song@ubuntu:~$ python find2.py
find the index of 2: 1
find the index of 2: 5...8
song@ubuntu:~$
2》法二:
song@ubuntu:~$ vi find_2.py
song@ubuntu:~$ more find_2.py
l=[2,2,3,4,5,1,2,3,1,2,3,4,5...song@ubuntu:~$
3》法三:
song@ubuntu:~$ vi find_2_1.py
song@ubuntu:~$ more find_2_1.py
l=[2,2,3,4,5,1,2,3,1,2,3,4,5...6
9
song@ubuntu:~$
4》法四:
song@ubuntu:~$ vi find_2.py
song@ubuntu:~$ more find_2.py
l=[2,2,3,4,5,1,2,3,1,2,3,4,5...法五:
song@ubuntu:~$ vi find_2.py
song@ubuntu:~$ more find_2.py
l=[2,2,3,4,5,1,2,3,1,2,3,4,5]
pos=-1