function modify(id ,name,pw,pageNow)
{
$("#myModal .modal-content .modal-body input:eq(0)").attr("placeholder",name);
$("#myModal .modal-content .modal-body input:eq(1)").attr("placeholder",pw);
$("#myModal").modal("toggle");
$("#myModal .modal-content .modal-footer a").click(function(){
var newname1=$("#myModal .modal-content .modal-body input:eq(0)").val();
var newpw1=$("#myModal .modal-content .modal-body input:eq(1)").val();
exe(id,newname1,newpw1,pageNow)
});
}
function exe(id,newname,newpw,pageNow){
$.ajax({
type: "GET",
dataType: "json",
url: "modify",
data:{"id":id,"name":newname,"pw":newpw,"pageNow":parseInt(pageNow)},
error:function(XMLHttpRequest,textStatus,errorThrown){},
success: function(json,textstatus) {
pageNow=json.pageNow;
$.ajax({
type: "POST",
dataType: "json",
url: "allUsersbyPages",
data:{"pageNow":parseInt(pageNow)},
error:function(XMLHttpRequest,textStatus,errorThrown){},
success: function(json,textstatus) {
pageNow=json.pageNow;
page=json.pageTotal;
console.log(pageNow);
table(json.dataRows);//调用上面的table函数 ,但是说没有定义，只好在下面又定义了一次，应该试试全局函数怎么定义
function table(dataRows){
var tbody = ""
a="<tr><th>"+'序号'+"</th><th>"+'昵称'+"</th><th>"+'密码'+"</th><th>"+'操作'+"</th></tr>";
$("#tab").children().remove();//删除之前生成的tbody
$("#tab").append(a);
$.each(dataRows, function(i, n) {
tbody="<tr><td>"+(i+1+(pageNow-1)*3)+"</td><td>"+n.username+"</td><td>"+n.password+"</td><td><a class='btn btn-info' href='javascript:dodelete2("+n.id+","+pageNow+")'>删除</a><a class='btn btn-info' href='javascript:modify("+n.id+","+'"'+n.username+'"'+","+'"'+n.password+'"'+","+pageNow+")'>修改</a></td></tr>";
$("#tab").append(tbody);
});
}
}
});
}
});

$("#myModal .modal-content .modal-footer a").click(function(){
var newname1=$("#myModal .modal-content .modal-body input:eq(0)").val();
var newpw1=$("#myModal .modal-content .modal-body input:eq(1)").val();
exe(id,newname1,newpw1,pageNow)
这部分逻辑是不是有问题啊？调用modify函数后exe函数在$("#myModal .modal-content .modal-footer a").click后会累加提交呀