文档介绍：Firebug Document
COMMAND LINE API 3
$(id) 3
$$(selector) 3
$x(xpath) 3
dir(object) 3
dirxml(node) 3
cd(window) 3
clear() 3
inspect(object[, tabName]) 3
keys(object) 3
values(object) 3
debug(fn) 4
undebug(fn) 4
monitor(fn) 4
unmonitor(fn) 4
monitorEvents(object[, types]) 4
unmonitorEvents(object[, types]) 4
profile([title]) 4
profileEnd() 4
CONSOLE API 4
(object[, object, ...]) 4
(object[, object, ...]) 5
(object[, object, ...]) 5
(object[, object, ...]) 5
(object[, object, ...]) 5
(expression[, object, ...]) 5
(object) 5
(node) 6
() 6
(object[, object, ...]) 6
(object[, object, ...]) 6
() 6
(name) 6
(name) 6
([title]) 6
() 6
([title]) 6
Implementation Notes 7
Firebug 7
Firebug 7
Firebug 7
Firebug and earlier 7
KEYBOARD AND MOUSE SHORTCUTS 7
Global 7
HTML Tab 7
HTML Editor 8
HTML Inspect Mode 8
Script Tab 8
DOM Tab 8
DOM and Watch Editor 9
CSS Tab 9
CSS Editor 9
Layout Tab 9
Layout Editor 9
Command Line (small) 10
Command Line API
The mand line provides these special functions for your convenience:
$(id)
Returns a single element with the given id.
$$(selector)
Returns an