本系统中，PHP代码文字编码使用的是UTF8。

A.default character set utf8

B.use utf8

C.default collate utf8_general_ci

D.show character set utf8

A.$_GET[];

B.Request.QueryString;

C.Request.Form;

D.$_POST[]

A.Iterator it=list.iterator(); while(it.hasNext()){ it.next(); it.remove(); }

B.Iterator it=list.iterator(); while(it.hasNext()){ it.remove(); }

C.Iterator it=list.iterator(); while(it. hasNext()){ Object obj=it.next(); list.remove(obj); }

D.Iterator it=list.iterator(); while(it.hasNext()){ list.remove(); }

A.Unicode码

B.BIG5

C.ASCII 码

D.GB 2312-IP 80

A.gb2312

B.latin1

C.gbk

D.utf8