A.submit(); B.myform.submit() C.document.myform.submit() D.window.myform.submit();
分析下面的Javascript代碼段,輸出結(jié)果是() var mystring=”I am a student”; var a=mystring.substring(9,13); document.write(a);
A.stud B.tuden C.uden D.udent
A.<input name=”mybutton” type=”button” onBlur=”compute()”value=”計(jì)算”> B.<input name=”mybutton” type=”button” onFocus=”compute()”value=”計(jì)算”> C.<input name=”mybutton” type=”button” onClick=”function compute()”value=”計(jì)算”> D.<input name=”mybutton” type=”button” onClick=”compute()”value=”計(jì)算”>