*{margin:0;padding:0;border:0;}strong{font-family:'微软雅黑';font-size:14px;font-weight:800}code{padding:2px 4px;color:#c7254e}.marked{color:#dd0000}.baizi{color:#ffffff}a{color:#0F4B8B}a:visited{text-decoration:none;color:#007EFF;background:transparent}a:hover{text-decoration:underline;color:#000;background:transparent}.dazi{font-size:14px}.xiaozi{font-size:12px}.cuzi{font-weight:bold;font-family:'黑体'}.marr5{margin-right:5px}.marr3{margin-right:3px}.marl5{margin-left:5px}.marl3{margin-left:3px}.mart5{margin-top:5px}.mart3{margin-top:3px}.mart10{margin-top:10px}table.browsersupport .bsIE{background-image:url('/img/compatible_ie.gif');}table.browsersupport .bsFirefox{background-image:url('/img/compatible_firefox.gif');}table.browsersupport .bsChrome{background-image:url('/img/compatible_chrome.gif');}table.browsersupport .bsSafari{background-image:url('/img/compatible_safari.gif');}table.browsersupport .bsOpera{background-image:url('/img/compatible_opera.gif');}table.browsersupport .bsNoIE{background-image:url('/img/incompatible_ie.gif');}table.browsersupport .bsNoFirefox{background-image:url('/img/incompatible_firefox.gif');}table.browsersupport .bsNoChrome{background-image:url('/img/incompatible_chrome.gif');}table.browsersupport .bsNoSafari{background-image:url('/img/incompatible_safari.gif');}table.browsersupport .bsNoOpera{background-image:url('/img/incompatible_opera.gif');}table.browsersupport .bsPreIE{background-image:url('/img/precompatible_ie.gif');}table.browsersupport .bsPreFirefox{background-image:url('/img/precompatible_firefox.gif');}table.browsersupport .bsPreChrome{background-image:url('/img/precompatible_chrome.gif');}table.browsersupport .bsPreSafari{background-image:url('/img/precompatible_safari.gif');}table.browsersupport .bsPreOpera{background-image:url('/img/precompatible_opera.gif');}table.browsersupport{margin-top:15px;border-collapse:collapse;width:70%}table.browsersupport td{padding:3px;height:32px;vertical-align:middle;background:#fff no-repeat center;border:1px solid #dadada}table.browsersupport td.bsProperty{font-family:courier new;white-space:nowrap;width:20%;vertical-align:middle}table.browsersupport th{padding:3px;height:15px;vertical-align:middle;text-align:center;background-color:#efefef;border:1px solid #c3c3c3}table.dataintable td.html5_new{background:#EFEFEF url(/img/table_bg_html5.gif) top right no-repeat}.tutintro,.tutheader,.list,.notranslate,.reference,.style{font-family:宋体}a.tryitbtnsyntax:active,a.tryitbtnsyntax:hover,a.tryitbtnsyntax:link{float:right;padding-top:0px;padding-bottom:2px;background-color:#125492;border:1px solid #aaa;}a.tryitbtnsyntax:visited{background-color:#2D7BC5;}a.playitbtn,a.playitbtn:link{display:inline-block;color:#fff;font-weight:700;font-size:11px;text-align:center;padding:10px;text-decoration:none;margin-left:1px;border-radius:5px;white-space:nowrap;}a.playitbtn:visited{background-color:#2D7BC5;}a.tryitbtnsyntax:active,a.tryitbtnsyntax:hover{color:#125492;background-color:#fff}h2.example,h2.example_head{margin-top:0;background-color:transparent;color:#444;color:#125492;}h2.example{font-size:120%;margin-bottom:5px;}h2.example_head{font-size:140%;}div.example_code{width:96%}div.example{margin:0 0 5px 0;padding:10px 5px 10px 5px;width:96%;border:1px solid #d4d4d4;background-color:#F2F8FF;background-image:-webkit-linear-gradient(#fff,#F2F8FF 100px);background-image:linear-gradient(#fff,#F2F8FF 100px);color:#000;}div.example_code{padding:5px;width:96%;border:1px solid #d4d4d4;background-color:#fff;word-wrap:break-word;font-size:110%;line-height:1.4em;word-break:break-all;}.hl-default{color:#000;}.hl-code{color:Gray;}.hl-brackets{color:Olive;}.hl-comment{color:#a50;}.hl-quotes{color:#8b0000;}.hl-string{color:#a11;}.hl-identifier{color:#05a;}.hl-builtin{color:Teal;}.hl-reserved{color:Green;}.hl-inlinedoc{color:#00f;}.hl-var{color:#00008b;}.hl-url{color:#00f;}.hl-special{color:Navy;}.hl-number{color:Maroon;}.hl-inlinetags{color:#00f;}.hl-main{background-color:#fff;white-space:pre-wrap;word-wrap:break-word;word-break:break-all;line-height:170%;padding:5px;margin-bottom:5px;}.hl-gutter{background-color:#999;color:#fff;}.hl-table{border:solid 1px #d3d3d3;font-size:12px;font-family:courier;}.highLT{color:#170;}.highGT{color:#170;}.highCOM{color:#a50;}.highELE{color:#170;}.highATT{color:#00c;}.highVAL{color:#a11;}a.tryitbtn{line-height:25px;background-color:#D9EBFF;padding:10px 20px;border:solid 1px #125492;-webkit-transition:all 0.3s ease-out 0s;}a.tryitbtn:hover{background-color:#125492;color:#ffffff;}.linksite{color:red!important;-webkit-filter:grayscale(0%)!important;-moz-filter:grayscale(0%)!important;-ms-filter:grayscale(0%)!important;-o-filter:grayscale(0%)!important;}@media only screen and (max-device-width:799px){.pro541{width:100%;clear:both}body{font-size:1rem}#body{padding:0px 5px}a,strong{font-size:1rem}#head{width:100%;margin:0 auto;padding-top:10px}.logodiv{width:25%;height:100%;float:left;margin:0 2%;}.titlediv{width:70%;height:100%;float:left;text-align:left;padding-top:5px;overflow:hidden;}.titlediv font{font-size:68px;color:#125492;font-family:Arial}.modulediv0{clear:both;}.modulediv{width:24.5%;height:70px;float:left;text-align:center;padding-top:10px;font-size:12px}.modulediv a,.modulediv strong{font-size:0.9rem}.modulediv a.wfslct{filter:grayscale(85%);-webkit-filter:grayscale(85%);-moz-filter:grayscale(85%);-ms-filter:grayscale(85%);-o-filter:grayscale(85%);}.searchdiv{clear:both;width:100%;height:40px;float:right;text-align:center;padding-top:10px}#q{width:60%;font-size:16px;height:28px;border:1px #333 solid;padding:0px 0px 0px 28px;background-image:url('/img/search.png');background-repeat:no-repeat;border-radius:4px}.sbtn{height:28px;width:20%;background-color:#125492;color:white;font-size:12px}#nav,.titleBread,.bdsharebuttonbox,blockquote,.logospan,#fastloc,#rightother,.betweenTandC,.logoimg,.underNav{display:none}div#body_index,div#left2col,div#contentdiv_index{width:100%;clear:both;float:none;background-image:none}.titleH1{width:90%}#safediv{height:1px;clear:both;width:95%;}.sword{width:70%;height:26px;padding:0px 0px 0px 4px;font-size:14px}.ssub{width:10%;height:26px;font-size:12px;color:white;background-color:#125492}.rightcpic1{width:100%;height:32px;padding:5px 0px;text-align:center;background-color:#125492}.leftcpic1,.leftcpic2{width:100%;height:32px;padding:5px 0px;text-align:center;background-color:#125492}#leftnav{clear:both;}.xuanxiuUl p{margin:5px 0;}.xuanxiuUl p.manuallist{text-align:center;margin-top:10px}.xuanxiuUl p img{margin-right:5px;}div#leftnav ul.only{margin-top:8px;}div#leftnav h2{margin:10px 0 5px 12px;font-weight:bold;}div#leftnav li{margin:10px 0 5px 12px;list-style:none;}#maincenter{border-top:1px solid #333;padding-top:15px;margin:15px 0 5px 12px;width:94%;}.startstudy  a{font-size:1rem;display:block;text-align:center;width:85%;margin:15px 0px;background-color:#D9EBFF;padding:10px 20px;border:solid 1px #125492;-webkit-transition:all 0.3s ease-out 0s;}.startstudy  a:hover{background-color:#125492;color:#ffffff;}p.tiy{line-height:28px;margin:15px 0px;}.tiy  a{margin-top:15px;background-color:#D9EBFF;padding:10px 20px;border:solid 1px #125492;-webkit-transition:all 0.3s ease-out 0s;}.tiy  a:hover{background-color:#125492;color:#ffffff;}div#maincenter h2{margin:10px 0 5px 0px;font-size:18px;font-weight:bold;font-family:'微软雅黑';}div#maincenter h3{margin:15px 0 5px 0px;font-size:1rem;font-weight:bold;font-family:'微软雅黑';}div#contentdiv p{line-height:200%}div#contentdiv p.intro{font-weight:bold;}#contentdiv ol[class!='linenums'] li,ul li{line-height:200%}#contentdiv img{}div#contentdiv table{margin:8px 0px;border-collapse:collapse;border:1px solid #aaa;width:100%;max-width:880px;}div#contentdiv table:not(.lamp) th{vertical-align:baseline;padding:5px 15px 5px 6px;background-color:#B8DAFF;border:1px solid #aaa;text-align:left;}div#contentdiv table td{word-break:break-all;padding:6px 15px 6px 6px;background-color:#E5F1FF;border:1px solid #aaa;}li.currentLink a:link,li.currentLink a:visited{text-decoration:none;color:#ff0000;background:transparent;font-weight:bold;}div#contentdiv input{border:1px solid gray;height:25px;padding:0px 5px;}div#contentdiv button{padding:5px;}div#contentdiv dt  a{display:block;margin-top:15px;}div#contentdiv dt  a.special{display:block;height:20px}div#contentdiv pre{margin:15px 0px;line-height:150%;font:12px/20px 'courier new';white-space:pre-wrap;word-break:break-all;word-wrap:break-word;border:1px solid #ddd;border-left-width:4px;background:#fbfbfb url(/img/codecolorer_bg.gif) top;padding:10px 35px}div#contentdiv hr{width:100%;height:1px;background-color:gray;margin:15px 0px;}#bottom{padding:5px 0px;text-align:center;font-size:12px;color:#ffffff;background-color:#125492;width:100%;clear:both;line-height:180%}#bottom a{color:white;font-size:12px;}}@media only screen and (min-device-width:800px){body{padding-bottom:0px;margin:0px;padding-left:0px;padding-right:0px;padding-top:0px;position:relative;min-width:1139px;background-color:#F9F9F9;background-image:url('../img/bg.gif');background-repeat:repeat-y;background-position:center;font-family:Verdana,Arial,'宋体';font-size:14px;}.underNav{width:1120px;margin:0 auto;padding:11px 0px;background-color:#E8F3FF}.pro541{width:1120px;margin:5px auto;clear:both}#head{width:1120px;height:90px;margin:0 auto;padding-top:10px}.logodiv{width:70px;height:70px;float:left;margin-right:10px;padding:5px;}.titlediv{width:205px;height:80px;float:left;text-align:center;margin-right:20px}.titlediv font{font-size:62px;color:#125492}.modulediv{width:110px;height:70px;float:left;text-align:center;padding-top:10px}#head a.wfslct{font-size:0.9rem;transition-property:all 0.3s ease-out 0s;-moz-transition:all 0.3s ease-out 0s;-webkit-transition:all 0.3s ease-out 0s;-o-transition:all 0.3s ease-out 0s;filter:grayscale(85%);-webkit-filter:grayscale(85%);-moz-filter:grayscale(85%);-ms-filter:grayscale(85%);-o-filter:grayscale(85%);}#head a.wfslct:hover{filter:grayscale(0%);-webkit-filter:grayscale(0%);-moz-filter:grayscale(0%);-ms-filter:grayscale(0%);-o-filter:grayscale(0%);}.modulediv strong,.modulediv a{font-size:0.9rem;font-family:宋体;}.searchdiv{width:360px;height:40px;float:right;text-align:right;padding-top:30px}#q{width:220px;font-size:16px;height:28px;border:1px #333 solid;padding:0px 0px 0px 28px;background-image:url('/img/search.png');background-repeat:no-repeat;border-radius:4px}.sbtn{height:28px;width:90px;background-color:#125492;color:white;font-size:12px}p.tip span{color:#ff9955}div#body{width:1120px;height:90%;padding:0px;margin:5px auto;clear:both;overflow:visible;background:url('/img/bodybg.gif') repeat-y}#left2col{width:920px;padding:0px;float:left}#leftnav{width:220px;padding:0px;float:left}.leftcpic1{width:220px;height:32px;padding:5px 0px;text-align:center;background-color:#125492}.leftcpic2{width:220px;height:32px;padding:5px 0px;text-align:center;background-color:#125492;margin-top:10px}div#leftnav h2{margin:10px 0 5px 12px;font-size:12px;font-weight:bold;}div#leftnav ul{margin-left:12px;}div#leftnav ul.only{margin-top:8px;}div#leftnav li{list-style:none;padding:0;font-size:14px;height:23px}li.currentLink a:link,li.currentLink a:visited{text-decoration:none;color:#ff0000;background:transparent;font-weight:bold;}div#leftnav li:last-child{margin-bottom:10px;}.xuanxiuUl{margin-top:10px}.xuanxiuUl li{margin-top:3px}.xuanxiuUl p{margin:5px 0;}.xuanxiuUl p.manuallist{text-align:center;margin-top:20px}.xuanxiuUl p img{margin-right:5px;}.icon{margin:5px 15px 15px 15px}#maincenter{width:890px;padding:5px;margin:0px 0px 0px 0px;float:left;background:transparent}div#contentdiv{margin:10px 5px 10px 15px;line-height:190%}div#maincenter p:first-child{margin:0}div#contentdiv ul,div#contentdiv ol{margin:10px;margin-left:35px;}div#contentdiv ol[class!='linenums'] li,ul li{margin-top:5px;line-height:190%}div#contentdiv input{border:1px solid gray;height:25px;padding:0px 5px;}div#contentdiv button{padding:5px;}div#contentdiv img{max-width:880px}div#contentdiv ul img{max-width:680px}div#contentdiv dt  a{display:block;margin-top:15px;}div#contentdiv dt  a.special{display:block;height:20px}div#contentdiv p{margin:12px 0 0 0px;line-height:190%;text-indent:0em}div#contentdiv li p{margin:0px}div#contentdiv iframe{margin:12px 0 0 10px}div#contentdiv p.tiy{line-height:28px}div#contentdiv h3,div#contentdiv h4{margin:20px 0px 0px 0px}div#contentdiv div.hl-main,div.result,div.htmlHigh,div.jsHigh{border:0px;border-top:0px}div#contentdiv	section{width:880px;margin:0 0 0 10px;padding:20px 0 20px 0;border-top:2px solid #333333}div#contentdiv pre{margin:15px 0px;line-height:150%;font:12px/20px 'courier new';white-space:pre-wrap;word-break:break-all;word-wrap:break-word;border:1px solid #ddd;border-left-width:4px;background:#fbfbfb url(/img/codecolorer_bg.gif) top}div#contentdiv blockquote{margin:10px;padding:10px;background-color:#F0F8FF;font-size:14px;line-height:2em;}div#contentdiv pre.result{color:#333;padding:8px 0px 0px 5px}div#contentdiv hr{width:98%;height:1px;background-color:gray;margin:15px 0px;}div#contentdiv table{margin:8px 0px;border-collapse:collapse;border:1px solid #aaa;width:100%;max-width:880px;}div#contentdiv table:not(.lamp) th{vertical-align:baseline;padding:5px 15px 5px 6px;background-color:#B8DAFF;border:1px solid #aaa;text-align:left;}div#contentdiv table td{word-break:break-all;padding:6px 15px 6px 6px;background-color:#E5F1FF;border:1px solid #aaa;}.tiy  a{margin-top:15px;background-color:#D9EBFF;padding:10px 20px;border:solid 1px #125492;-webkit-transition:all 0.3s ease-out 0s;}.tiy  a:hover{background-color:#125492;color:#ffffff;}.startstudy  a{font-size:18px;display:block;text-align:center;width:94%;margin:15px 0px 30px 0px;background-color:#D9EBFF;padding:10px 20px;border:solid 1px #125492;-webkit-transition:all 0.3s ease-out 0s;}.startstudy  a:hover{background-color:#125492;color:#ffffff;}div#tpn{height:30px;width:880px;padding:20px 0 20px 0;margin:0px 0px 20px 0px;border-top:2px solid #bbb;border-bottom:2px solid #bbb;line-height:130%}div#tpn a{float:left;width:225px;height:22px;text-align:center;display:block;}div.bdsharebuttonbox{margin:20px 0px;}div#maincenter ul.prenext{float:left;margin-top:0px;margin-left:0px;}div#maincenter ul.jiucuo{float:right;margin-top:0px;margin-left:0px;text-align:right}.titleDiv{border:0px;height:50px;padding:0px;margin:0px}.titleDivClass{border-bottom:2px solid #bbb;height:50px;padding-bottom:10px;margin-left:15px}.titleH1{border:0px;float:left;width:380px;height:45px;padding:0px;margin:0px}.titleDiv h1{margin:15px 0 0 15px;font-size:26px;font-family:'微软雅黑';}.titleDivClass h1{margin:15px 0 0 0px;font-size:26px;font-family:'微软雅黑';}a.cuo{padding-top:7px;width:160px;height:22px;display:block;}a.pre{background-image:url('../img/pre1.gif');padding-top:7px;}a.next{background-image:url('../img/next1.gif');padding-top:7px;margin-left:15px}div#maincenter h2{margin:10px 0 5px 0px;font-size:18px;font-weight:bold;font-family:'微软雅黑';}div#maincenter h3{margin:15px 0 5px 0px;font-size:14px;font-weight:bold;font-family:'微软雅黑';}div#maincenter p.intro{font-weight:bold;}div#maincenter p.flip{margin-top:15px;}div#maincenter div.panel,p.flip{width:400px;margin:0;padding:5px;text-align:center;background:#e5eecc;border:solid 1px #c3c3c3;}.betweenTandC{width:880px;margin:5px 0 0 10px;padding:0px;}.titleBread{border:0px;float:right;height:45px;padding:25px 0px 0px 0px;margin:0px;text-align:right}dl.define dt{margin:15px 0 3px 0;font-weight:bold;color:#0479A7;}div.bdsharebuttonbox{margin-top:15px;}#rightother{width:190px;padding:0px;float:right}div#rightother h2{margin:10px 0 5px 6px;font-size:12px;font-weight:bold}div#rightother form{margin:12px 0 12px 6px}div#rightother ul{margin:10px 0px 18px 12px}div#rightother li{list-style:none;margin:10px 0 0 0;padding:0;font-size:14px;height:17px}.sword{width:120px;height:26px;padding:0px 0px 0px 4px;font-size:14px}.ssub{width:40px;height:26px;font-size:12px;color:white;background-color:#125492}.rightcpic1{width:190px;height:32px;padding:5px 0px;text-align:center;background-color:#125492}#bodysafediv{height:1px;clear:both}#safediv{width:1120px;height:10px;padding:0px;margin:0px auto;clear:both}#bottom{text-align:center;font-size:12px;color:#ffffff;background-color:#125492;width:1120px;padding:10px 0px;margin:5px auto;clear:both;line-height:180%}#bottom a{color:white}.classpageshare{width:880px;margin:10px 0 0 10px;padding:20px 0 20px 0;border:0;border-top:1px solid #aaa;border-bottom:1px solid #aaa}.txtMain{width:70px;height:26px}.cb{clear:both}.rows2 a{display:block;width:86px;height:28px;float:left;font-size:14px}}