基础知识：51单片机编程基础.mht

单片机教程的重要部分,你们可以好好看看

}
* HTML .clearfix {
	HEIGHT: 1%
}
.clearfix {
	DISPLAY: block
}
.clearfix:unknown {
	CLEAR: both; DISPLAY: block; VISIBILITY: hidden; HEIGHT: 0px; content: =
"."
}
.hidden {
	DISPLAY: none
}
HTML {
	HEIGHT: 100%
}
BODY {
	HEIGHT: 100%
}
* HTML .container {
	HEIGHT: 100%
}
.container {
	MIN-HEIGHT: 100%; BACKGROUND: #fff; MARGIN: auto; WIDTH: 970px; =
TEXT-ALIGN: left
}
.header {
	MARGIN: 0px 10px 5px
}
.col1 {
	FLOAT: left; MARGIN-RIGHT: 5px
}
.col2 {
	FLOAT: left; MARGIN-RIGHT: 5px
}
.col3 {
	FLOAT: left; MARGIN-RIGHT: 5px
}
.col4 {
	FLOAT: left; MARGIN-RIGHT: 5px
}
.col5 {
	FLOAT: left; MARGIN-RIGHT: 5px
}
.news_sort {
	FLOAT: left; MARGIN-RIGHT: 5px
}
.layout-cols2 .col1 {
	OVERFLOW: hidden; WIDTH: 710px
}
.layout-cols2 .col2 {
	OVERFLOW: hidden; WIDTH: 250px; MARGIN-RIGHT: 0px
}
.layout-cols3 .col1 {
	WIDTH: 650px
}
.layout-cols3 .col1 .col1 {
	WIDTH: 250px
}
.layout-cols3 .col1 .col2 {
	WIDTH: 360px
}
.dl_main {
	BORDER-RIGHT: #99bbdd 1px solid; BORDER-TOP: #99bbdd 1px solid; FLOAT: =
left; MARGIN-BOTTOM: 10px; BORDER-LEFT: #99bbdd 1px solid; WIDTH: 645px; =
BORDER-BOTTOM: #99bbdd 1px solid
}
.dl_right {
	BACKGROUND: #f6f6f6; OVERFLOW: hidden; TEXT-ALIGN: center
}
.dl_left {
	BACKGROUND: #f6f6f6; FLOAT: left; OVERFLOW: hidden; WIDTH: 250px
}
.dl_left UL LI {
	BORDER-RIGHT: #fff 1px solid; PADDING-RIGHT: 10px; BORDER-TOP: #fff 1px =
solid; PADDING-LEFT: 10px; PADDING-BOTTOM: 2px; BORDER-LEFT: #fff 1px =
solid; PADDING-TOP: 2px; BORDER-BOTTOM: #fff 1px solid; WHITE-SPACE: =
nowrap
}
.dl_left UL LI.grid {
	BORDER-TOP-WIDTH: 0px; BACKGROUND: #e5eef5; BORDER-BOTTOM-WIDTH: 0px
}
#description {
	CLEAR: left; PADDING-RIGHT: 10px; PADDING-LEFT: 10px; PADDING-BOTTOM: =
10px; PADDING-TOP: 10px
}
#description P {
	MARGIN: 8px 0px
}
#description LI {
	LIST-STYLE-POSITION: inside; LIST-STYLE-TYPE: disc
}
#description DT {
	BORDER-RIGHT: #84b0c7 1px solid; PADDING-RIGHT: 0px; BORDER-TOP: =
#84b0c7 1px solid; PADDING-LEFT: 26px; FONT-WEIGHT: bold; FONT-SIZE: =
12px; BACKGROUND: url(description.gif) #fff no-repeat 5px 2px; =
PADDING-BOTTOM: 0px; MARGIN: 5px; BORDER-LEFT: #84b0c7 1px solid; WIDTH: =
100px; PADDING-TOP: 2px; BORDER-BOTTOM: #84b0c7 1px solid
}
#description DD {
	MARGIN: 5px
}
#dl_select {
	BORDER-RIGHT: #84b0c7 1px solid; PADDING-RIGHT: 5px; BORDER-TOP: =
#84b0c7 1px solid; PADDING-LEFT: 45px; BACKGROUND: url(download.gif) =
#e5eef5 no-repeat 10px 6px; PADDING-BOTTOM: 10px; MARGIN: 5px 10px; =
BORDER-LEFT: #84b0c7 1px solid; PADDING-TOP: 10px; BORDER-BOTTOM: =
#84b0c7 1px solid
}
#correlative_a {
	BORDER-RIGHT: #c7c783 1px solid; PADDING-RIGHT: 10px; BORDER-TOP: =
#c7c783 1px solid; PADDING-LEFT: 10px; BACKGROUND: #f3f3e5; =
PADDING-BOTTOM: 10px; MARGIN: 10px 10px 0px; BORDER-LEFT: #c7c783 1px =
solid; PADDING-TOP: 10px; BORDER-BOTTOM: #c7c783 1px solid
}
#correlative_s {
	BORDER-RIGHT: #8388c7 1px solid; PADDING-RIGHT: 10px; BORDER-TOP: =
#8388c7 1px solid; PADDING-LEFT: 10px; BACKGROUND: #e5e6f3; =
PADDING-BOTTOM: 10px; MARGIN: 10px 10px 0px; BORDER-LEFT: #8388c7 1px =
solid; PADDING-TOP: 10px; BORDER-BOTTOM: #8388c7 1px solid
}
.layout-cols3 .col1 .span2 {
	CLEAR: both; BACKGROUND: #e1effb; MARGIN-BOTTOM: 10px
}
.layout-cols3 .col2 {
	WIDTH: 310px
}
.layout-cols3 .col3 {
	WIDTH: 300px; MARGIN-RIGHT: 0px
}
.layout-cols2 {
	MARGIN-BOTTOM: 0px! important
}
.layout-cols3 {
	MARGIN-BOTTOM: 0px! important
}
.layout-col2ultra .col1 {
	OVERFLOW: hidden; WIDTH: 280px
}
.layout-col2ultra .col2 {
	WIDTH: 685px; MARGIN-RIGHT: 0px
}
.layout-col2ultra .col2 .span2 {
	WIDTH: 685px; MARGIN-RIGHT: 0px
}
.layout-col2ultra .col2 .col1 {
	WIDTH: 369px
}
.layout-col2ultra .col2 .col2 {
	WIDTH: 309px
}
.layout-col2ultra .col2 .col3 {
	WIDTH: 335px
}
.layout-col2ultra .col2 .span2 {
	CLEAR: both; MARGIN-BOTTOM: 10px
}
.stitle {
	BORDER-RIGHT: #b0c7dd 1px solid; PADDING-RIGHT: 15px; BORDER-TOP: =
#b0c7dd 1px solid; PADDING-LEFT: 15px; BACKGROUND: #e1effb; =
PADDING-BOTTOM: 0px; MARGIN: 10px 0px; BORDER-LEFT: #b0c7dd 1px solid; =
LINE-HEIGHT: 30px; PADDING-TOP: 0px; BORDER-BOTTOM: #b0c7dd 1px solid; =
POSITION: relative; HEIGHT: 30px
}
.stitle SPAN {
	RIGHT: 10px; POSITION: absolute; TOP: 3px
}
#menu {
	MARGIN-TOP: 10px; FONT-SIZE: 14px; BACKGROUND: url(bg_menu.gif) =
repeat-x; LINE-HEIGHT: 27px; HEIGHT: 27px
}
#menu UL.menu A {
	PADDING-RIGHT: 15px; DISPLAY: block; PADDING-LEFT: 15px; BACKGROUND: =
url(bg_menu_a_right.gif) no-repeat right 50%; PADDING-BOTTOM: 0px; =
COLOR: #f2f6fb; LINE-HEIGHT: 27px; PADDING-TOP: 0px; TEXT-DECORATION: =
none
}
#menu UL.menu A:hover {
	BACKGROUND: url(bg_menu_hover_right.gif) no-repeat right 50%
}
#menu UL.menu {
	FLOAT: left; LIST-STYLE-TYPE: none
}
#menu UL.menu LI {
	DISPLAY: inline; FLOAT: left; MARGIN-RIGHT: 1px
}
#menu UL.link {
	FLOAT: right
}
#menu UL.link A {
	COLOR: #f2f6fb; LINE-HEIGHT: 27px
}
#menu UL.link LI {
	DISPLAY: inline; FLOAT: left; MARGIN-RIGHT: 14px
}
#menu LI.current {
	FONT-WEIGHT: bold; BACKGROUND: url(bg_menu_on_left.gif) no-repeat
}
#menu LI.current A {
	BACKGROUND: url(bg_menu_on_right.gif) no-repeat right 50%; COLOR: #000
}
#menu LI.current A:hover {
	BACKGROUND: url(bg_menu_on_right.gif) no-repeat right 50%; COLOR: #000
}
#menu LI.home {
	MARGIN-LEFT: 5px
}
#navi {
	PADDING-RIGHT: 0px; PADDING-LEFT: 0px; FONT-SIZE: 12px; BACKGROUND: =
url(bg_navi.gif) #c8d5e4 repeat-x; MARGIN-BOTTOM: 10px; PADDING-BOTTOM: =
3px; OVERFLOW: hidden; PADDING-TOP: 6px; HEIGHT: 20px
}
#navi A {
	COLOR: navy
}
#navi LI.high A {
	COLOR: #c30
}
#navi UL {
	FLOAT: left; LIST-STYLE-TYPE: none
}
#navi UL LI {
	PADDING-RIGHT: 1em; PADDING-LEFT: 1em; FLOAT: left; PADDING-BOTTOM: =
0px; PADDING-TOP: 2px; HEIGHT: 12px
}
#navi UL LI.heart {
	PADDING-LEFT: 30px; BACKGROUND: url(red.gif) no-repeat 10px -1px
}
#pageHeaderImage {
	PADDING-RIGHT: 0px; PADDING-LEFT: 20px; FLOAT: left; PADDING-BOTTOM: =
0px; PADDING-TOP: 20px
}
.search {
	BORDER-RIGHT: #99bbdd 1px solid; PADDING-RIGHT: 0px; BORDER-TOP: =
#99bbdd 1px solid; PADDING-LEFT: 10px; BACKGROUND: #f5fafe; FLOAT: left; =
PADDING-BOTTOM: 5px; MARGIN: 10px 0px 0px 150px; BORDER-LEFT: #99bbdd =
1px solid; WIDTH: 425px; PADDING-TOP: 10px; BORDER-BOTTOM: #99bbdd 1px =
solid; HEIGHT: 50px
}
.sw_b1 {
	BORDER-RIGHT: rgb(176,184,190) 1px solid; BORDER-TOP: rgb(176,184,190) =
1px solid; BORDER-LEFT: rgb(176,184,190) 1px solid; BORDER-BOTTOM: =
rgb(176,184,190) 1px solid
}
.sw_b2 {
	BORDER-RIGHT: rgb(227,227,228) 1px solid; BORDER-TOP: rgb(227,227,228) =
1px solid; BORDER-LEFT: rgb(227,227,228) 1px solid; BORDER-BOTTOM: =
rgb(227,227,228) 1px solid
}
.sw_b3 {
	BORDER-RIGHT: rgb(240,240,240) 1px solid; BORDER-TOP: rgb(240,240,240) =
1px solid; BORDER-LEFT: rgb(240,240,240) 1px solid; MARGIN-RIGHT: =
0.77em; BORDER-BOTTOM: rgb(240,240,240) 1px solid
}
INPUT.sw_qbox {
	BORDER-RIGHT: white 1px solid; PADDING-RIGHT: 0.4em; BORDER-TOP: white =
1px solid; PADDING-LEFT: 0.4em; FONT-SIZE: 112%; PADDING-BOTTOM: 0.3em; =
VERTICAL-ALIGN: middle; BORDER-LEFT: white 1px solid; WIDTH: 27em; =
COLOR: rgb(51,51,51); PADDING-TOP: 0.35em; BORDER-BOTTOM: white 1px =
solid
}
INPUT.sw_q_nrw {
	BORDER-RIGHT: white 1px solid; PADDING-RIGHT: 0.4em; BORDER-TOP: white =
1px solid; PADDING-LEFT: 0.4em; FONT-SIZE: 112%; PADDING-BOTTOM: 0.3em; =
VERTICAL-ALIGN: middle; BORDER-LEFT: white 1px solid; WIDTH: 27em; =
COLOR: rgb(51,51,51); PADDING-TOP: 0.35em; BORDER-BOTTOM: white 1px =
solid
}
INPUT.sw_qbtn {
	BORDER-RIGHT: medium none; BORDER-TOP: medium none; BACKGROUND-IMAGE: =
url(sebtn.gif); MARGIN: 0.14em 0.2em 0.14em 0.14em; VERTICAL-ALIGN: =
middle; BORDER-LEFT: medium none; WIDTH: 24px; CURSOR: pointer; =
LINE-HEIGHT: 500%; BORDER-BOTTOM: medium none; BACKGROUND-REPEAT: =
no-repeat; HEIGHT: 24px; BACKGROUND-COLOR: rgb(84,156,0)
}
#buttonsearch {
	PADDING-RIGHT: 0px; PADDING-LEFT: 0px; BACKGROUND: 0% 50%; =
PADDING-BOTTOM: 0px; MARGIN: -26px 0pt 0pt 330px; PADDING-TOP: 0px; TOP: =
0px
}
.hot_line {
	CLEAR: both; PADDING-TOP: 3px
}
.hot_line A:link {
	COLOR: #dd8700
}
.hot_line A:visited {
	COLOR: #dd8700
}
.hot_line A:hover {
	COLOR: #dd8700; TEXT-DECORATION: underline
}
.toplink {
	MARGIN-TOP: 14px; FLOAT: left; MARGIN-LEFT: 20px; WIDTH: 160px
}
.toplink UL LI {
	FLOAT: left; WIDTH: 80px; LINE-HEIGHT: 30px; HEIGHT: 30px; TEXT-ALIGN: =
center
}
.disable {
	DISPLAY: none
}
.box {
	BORDER-RIGHT: #99bbdd 1px solid; BORDER-TOP: #99bbdd 1px solid; =
MARGIN-BOTTOM: 10px; BORDER-LEFT: #99bbdd 1px solid; BORDER-BOTTOM: =
#99bbdd 1px solid
}