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document.oncontextmenu ´´½¨ÔªËØ
document.createElement("SPAN");  ¸ù¾ÝÊó±ê»ñµÃÔªËØ£º
document.elementfromPoint(event.x,event.y).tagName=="TD
document.elementfromPoint(event.x,event.y).appendChild(ms)  ´°ÌåͼƬ
document.images[Ë÷Òý] ´°Ìåʼþ°ó¶¨
document.onmousedown=scrollwindow; ÔªËØ
document.´°Ìå.elements[Ë÷Òý] ¶ÔÏó°ó¶¨Ê¼þ
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document.getElementsByName("r1");
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(function(){
return typeof arguments;
})();
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// ¾ÍÊÇ¿¼Arguments¶ÔÏóµÄtypeof
// ¿´Æ½Ê±ÓÃfirebug¶à²»¶àÁË¡­¡­
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var f = function g(){ return 23; };
typeof g();
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return x;
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x;
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//º¯ÊýÃû±»ÓÅÏȼ¶¸ü¸ßµÄ²ÎÊýÃû¸²¸ÇÁË --->
// (function (f){
// return typeof f();
// })(function(){ return 1; });
//typeof 1 ---> "number"
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var foo = {
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create or replace procedure p1
is
  empname emp.ename%type;
begin
  select ename into empname from emp where empno=7788;
  dbms_output.put_line(empname);
end;
 
SQL> ed
SQL> /
 
Procedure created
 
SQL> exec p1;
 
SCOTT
 
PL/SQL procedure successfully completed
 
 
 
create or replace procedure p1(eno emp.empno%type)
is
empname emp.ename%type;
begin
  select ename into empname from emp where empno=eno;
  dbms_output.put_line(empname);
end;
 
SQL> ed
SQL> /
 
Procedure created
 
SQL> exec p1(7788);
 
SCOTT
 
PL/SQL procedure successfully completed
 
create or replace procedure p1(eno in emp.empno%type)
is
  empname emp.ename%type;
begin
  select ename into empname from emp where empno=eno;
  dbms_output.put_line(empname);
end;
 
SQL> ed
SQL> /
 
Procedure crea ......

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CREATE [OR REPLACE] TRIGGER trigger_name
AFTER | BEFORE | INSTEAD OF
[INSERT] [[OR] UPDATE [OF column_list]]
[[OR] DELETE]
ON table_or_view_name
[REFERENCING {OLD [AS] old / NEW [AS] new}]
[FOR EACH ROW]
[WHEN (condition)]
pl/sql_block;
 
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