<div dir="ltr"><table cellspacing="0" cellpadding="0" style="word-wrap:break-word;empty-cells:show;border-collapse:collapse;table-layout:fixed;width:1036px;color:rgb(0,0,0);font-family:song,Verdana;font-size:12px;background-color:rgb(240,243,250)">
<tbody style="word-wrap:break-word"><tr style="word-wrap:break-word"><td class="" id="postmessage_23784173" style="word-wrap:break-word;font-size:14px;line-height:1.6em;font-family:song,Verdana">>>> import os<br style="word-wrap:break-word">
>>> os.system("i=3")<br style="word-wrap:break-word">0<br style="word-wrap:break-word">>>> os.system("echo $i")<br style="word-wrap:break-word"><br style="word-wrap:break-word">0<br style="word-wrap:break-word">
>>> <br style="word-wrap:break-word">why i can't get the value of i ?</td></tr></tbody></table></div>