类似淘宝购物车全选状态

我是投资者

*{margin:0;padding:0;color:#727272;font-size:12px; outline:none;}
table{ border-collapse:collapse; border-spacing:0; }
a{color:#3A3A3A; text-decoration:none; color:#575757;}
a:hover{ text-decoration:none;}
.L_user .mailspage{ background:#fff;}
.L_user .mailspage .mail{padding-bottom:25px;}
.L_user .mailspage .mail p{margin:0px 0 5px 5px; padding-top:5px;}
.L_user .mailspage .mail table{width:745px; text-align:center;}
.L_user .mailspage .mail .table_box{ width:745px;border:1px solid #DDDDDD;margin:0 0 0px 10px;}
.L_user .mailspage .mail .firsttr{border-top:none;}
.L_user .mailspage .mail td{ height:30px; line-height:30px;}
.L_user .mailspage .sendmsm {margin-top:25px;}
.L_user .mailspage .sendmsm div{margin:0 0 10px 40px;}
.L_user .mailspage .sendmsm div label{ width:50px; text-align:right; display:inline-block; vertical-align:middle;margin-right:5px;}
.L_user .mailspage .sendmsm div input{margin-right:5px; border:1px solid #ccc; height:20px; line-height:20px; padding-left:5px; vertical-align:middle; border-radius:5px;}
.L_user .mailspage .sendmsm div textarea{ width:270px; height:130px; vertical-align:top;border:1px solid #ccc; padding:5px; border-radius:5px;}
.L_user .mailspage .sendmsm div  a{width:108px; height:35px; display:inline-block; background:url(../images/L_btn0615.jpg) no-repeat -8px -72px; vertical-align:middle;margin-right:10px;}
.L_user .mailspage .sendmsm div  a:hover{ background-position:-8px -115px;}
.L_user .mailspage{width:768px; border:1px solid #E5E5E5; float:left; overflow:hidden;}
.L_user .mailspage .loantab{background:#fff;border-bottom:1px solid #E5E5E5; }
.L_user .mailspage .loantab a{width:127px; height:40px; border:1px solid #E5E5E5; border-bottom:none;display:inline-block; text-align:center; border-left:none; border-top:none; line-height:40px; color:#464646; font-weight:bold; }
.L_user .mailspage .loantab a.c{ background:#F4F4F4; color:#CF161C;}
.L_user .mailspage .mail .markbtn a{ width:64px; height:27px; background:url(../images/L_btn0615.jpg) no-repeat -4px -6px; display:inline-block; text-align:center; line-height:25px; vertical-align:middle;}
.L_user .mailspage .mail .markbtn a:hover{ background-position:-4px -37px;}
.L_user .mailspage .mail .firsttr{ background:#F9F9F9; border-bottom:1px solid #DDDDDD;border-top:1px solid #DDDDDD; height:20px; line-height:20px;}

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//删除选中：
$(".markbtn .deletebtn").click(function(){
$(".table_box tr").each(function(){
if($(this).find("input").attr("checked")&&$(this).index()!=0){
$(this).remove();
}
})
})
$("#allcheckbox").click(function(){
if($(this).attr("checked")){
$(".table_box td input").attr("checked","checked");
}else{
$(".table_box td input").attr("checked","")
}
})

$(".table_box  input").not("#allcheckbox").click(function(){
$(".table_box  input").not("#allcheckbox").each(function(){
if($(".table_box  input[type='checkbox']:checked").not("#allcheckbox").length==$(".table_box tr").not("#titletr").length){
$("#allcheckbox").attr("checked","checked");
}else{
$("#allcheckbox").attr("checked","");
}
})

})