wins和linux 系统不同编码格式导致的.py执行问题： bad interpreter: No such or file directory

#!/usr/bin/python
# The Mininet Project2                                                         
# filename:MyTopo.py
# Author: Lewis                               

from mininet.topo import Topo
from mininet.net import Mininet
from mininet.util import irange,dumpNodeConnections
from mininet.log import setLogLevel
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