def ipcatch():
cmd = "ipconfig"
pingtxt = os.popen(cmd)
pingtxt1 = pingtxt.readlines()
w = len(pingtxt1)
n = 0
pingstr = ""
for line in pingtxt1:
if "192.168" in line:
while n < w:
strq = pingtxt1[n]
if -1 != strq.find('192'):
rate = strq.split(":")[-1]
pingstr = "ping " + rate
print pingstr
print rate
break
else:
n = n + 1
return pingstr
