人生无常归去来兮，且行且珍惜

摘要： class aa{ function m1() { echo "m1 runned in aa"."<br/>"; $this->m2(); } function m2() { echo "m2 runned in aa"."<br/>"; }}class bb extends aa{ function m2() { echo "m2 runned in bb"."<br/>"; } }$a=new bb();$a->m1(); 阅读全文