关键字26
break
case catch continue
debugger default delete do
else
finally for function
if in instance
new
return
switch
this throw try typeof
var void
while with
保留字
abstract boolean byte
char class const
double
enum export extends
final float
goto
implements import int interface
long
native
package private protected public
short static super synchronized
throws transient
volatile
在JavaScript引擎中使用关键字做标识符会导致"Identifier Expected"错误