Python脚本调用执行参数

Python调用文件参数，写的比较简单的个脚本。最近学py ，就用Py脚本来控制多个服务。

#!/usr/bin/env python
import os
import subprocess
import sys

TRADE="/usr/bin/trade"
FLASH="/usr/bin/flash"
RED5="/usr/bin/red5"

def prestart():
    if os.path.exists(TRADE) :
       subprocess.call([TRADE,"start"])
       subprocess.call([FLASH,"start"])
       subprocess.call([RED5,"start"])
       print "Program:            state:        Action:         \n %s    start    success \n %s  start   success \n %s   start  success \n"%(TRADE,FLASH,RED5)
   
    else:
        print '%s is not fonud,please check st.py' %(TRADE)
        
    
    
def prestop():
       subprocess.call([TRADE,"stop"])
       subprocess.call([FLASH,"stop"])
       subprocess.call([RED5,"stop"])  
       print "Program:             state:        Action:        \n %s    stop    success \n %s  stop   success \n %s   stop  success \n"%(TRADE,FLASH,RED5)
       
def main():
    if len(sys.argv) == 1 :
        prestart()
    else:
        LE=sys.argv
        if LE[1]=="start":
           prestart()
        elif LE[1]=="stop":
            prestop()
        else:
             print "Use:start or stop"
            
    
       
if  __name__ == '__main__' :
    main()