<html><head><meta http-equiv="content-type" content="text/html; charset=GB2312"><style>body { line-height: 1.5; }body { font-size: 10.5pt; font-family: 微软雅黑; color: rgb(0, 0, 0); line-height: 1.5; }</style></head><body> <div><span></span><br></div> <div><div style="font-family: 微软雅黑, Tahoma;">After "sudo apt-get upgrade",I want to find how apt to acieve the package install,but when I encounter "PkgIterator Pkg(Cache,*I)",but I can not find the definition of "Pkg()".</div><div style="font-family: 微软雅黑, Tahoma;">So anyone can help me?</div><div style="font-family: 微软雅黑, Tahoma;"> </div></div><hr style="width: 210px; height: 1px;" color="#b5c4df" size="1" align="left"> <div><span><div style="MARGIN: 10px; FONT-FAMILY: verdana; FONT-SIZE: 10pt"><div>yankun@iscas.ac.cn</div></div></span></div> </body></html>