2015/9/1

 1.在字符串中没有可以所需要查找的“X”的时候，返回的值  java:lastIndexof -1  js: IndexOf undefined...

 

2015/9/10

 1.js:string.substr(start[,length])  如，selecter.dm = selectIndex.substr(3);tr_1234取到“1234”

 

2015/9/11

 1.iframe.src=url;button的onclick事件后直接跳转？ 2.配置环境变量：区分用户、环境  最好用户还是使用administrator的用户，（系统一般是先调用系统，然后调用用户？）《实在不行再用户变量中也设置，此外cmd-set查看参数》 3.WorkBook、JSONObject工具的使用

 

2015/9/16

 1.js中使用的ActiveXObject对象，简单理解：加载外部的程序到IE中 2.SQL语句：cast(12.5 AS int) = 12;用于数据类型的转换 3.httpclient:setParameter(“hh”,122)、.httpsend(url)、

 

2015/9/18

 1.乱码问题：  js:xdata = encodeURI(encodeURI(xdata));  java:fUrl = URLDecoder.decode(URLDecoder.decode(fUrl,"utf-8"),"utf-8");

 

2015/9/23

 1.js中使用的(function(){...})();(function(){...}()),是js立即执行函数的常见写法，在函数后面加个括号就能立即执行。 2.灵活应用js中的eval()方法，eval("var a="+data);取出在调用后台返回的数据。

 

2015/10/9

 js：   1.<script>中使用方法，防止”<“,被解析为标签；     <script>  <![CDATA[   function(){     alert("</script>");    }  ]]>  //非IE好像(注意”//“)  //<![CDATA[   function(){     alert("</script>");    }  //]]>  /**   * a < b;   **/     </script>

 

2015/11/10

 1.js的addRow类的方法： function addRow(id) {             var tr = document.getElementById(id + "_Item");            var oCloneNode = tr.cloneNode(true);            var comm = document.getElementById(id);            comm.insertBefore(oCloneNode,tr);            var len = comm.childNodes.length;            var index = len-2;            oCloneNode.id = id + "_Item" + index;            //setElementsId(oCloneNode,index);            oCloneNode.style.display = "block";        } function setElementsId(obj,index){   var len = obj.childNodes.length;  for(var i = 0;i < len;i++){    var tmp = obj.childNodes[i];   var id = tmp.id   if(id){     tmp.id = id + index;   }   if(!tmp.id && tmp.name){        tmp.id = tmp.name + index;   }   setElementsId(tmp,index);  }        } 3.车牌号验证：js  var re = /^[\u4e00-\u9fa5]{1}[A-Z]{1}[A-Z_0-9]{5}$/;  if(!re.test($(ctrlId).value)){    obj.style.display = "block";   obj.innerHTML = infoTip;  }else{    cph_boo = true;   obj.style.display = "none";  } 4.excel导入，自行研究。

 

2015/11/24

 1.<script type="text/javascript" src="jq.js"></script>此处的src为相对路径，/jq.js为绝对路径

 

2015/12/2

  页面提交form时，刷新的是？？  form.submit();并不会触发submit事件，提交给后台

 

2015/12/15

 1.表格显示添加一个单选列 var tableColum=[   ["RADIO", "String", "选择", "35", "center", "RADIO"],   ["DKEY", "String", "权限代码", "100", "center", ""],   ["DVAL", "String", "权限名称", "180", "center", ""]      ]; 2.<a href="javascript:scroll(0,0)">返回顶部</a>

 

2015/12/16

 1.去除select其他option for(var i=1;i<fy2.options.length;){   fy2.removeChild(fy2.options[i]); }  2.IE与非IE的兼容性问题 if($.browser.msie && $.browser.version <=9){   tmp = obj.childNodes[i]; }else{   tmp = obj.children[i]; } 3.ie：支持innerText和innerHTML  支持tmp.name     not ie：支持innerHTML和textContent  不支持tmp.name,可以用tmp.getAtrribute("name") 4.检测浏览器类型 function judgeBrowser(){   var userAgent = navigator.userAgent;  var isOpera = userAgent.indexOf("Opera") > -1;  var isIE = userAgent.indexOf("compatible") > -1;  var isFF = userAgent.indexOf("Firefox") > -1;  var isSafari = userAgent.indexOf("Safari") > -1;   if(isIE){    var IE5 = IE55 = IE6 = IE7 = IE8 = IE9 = false;   var version = /MSIE\s(\S)/.exec(userAgent)[1];    var fIEVersion = parseFloat(version);   switch(fIEVersion){     case 5.5:     return "IE5.5";    case 6:     return "IE6";    case 7:     return "IE7";    case 8:     return "IE8";    case 9:     return "IE9";    default:     return "IEX"   }   if(isOpera){     return "Opera";   }   if(isFF){     return "Firefox";   }   if(isSafari){     return "Safari";   }     } }

2015/12/18

 1.html nodeType=1(为元素节点)  iType:Integer that receives one of the following values.  1 Element node.   3 Text node.

2016/1/26

 1.迭代地为button添加event，使用了attachEvent，但是添加多个事件后顺序随机（但是脚本之家的资料是说逆序执行）   function addEvent(obj,type,eve){//添加事件的id，为什么类型的标签添加，添加什么事件             alert(tid+","+type+","+event)  if(obj){    var len = obj.childNodes.length;   for(var i = 0;i < len;i++){     var tmp = obj.childNodes[i];    if(tmp){      var tp = tmp.tagName;     if(tp == type){       tmp.attachEvent("onclick",eve);     }     addEvent(tmp,type,eve);    }       }  }else{    alert("Obj has problem!")   return;  }     } 2.  var rsRows = document.getElementById("rstable").tBodies[0].rows;  var rowNum = rsRows.length;  var j = 0;  for(var i=0; i<rowNum; i++){    var chk = rsRows[i].cells[this.chk_pos].childNodes[0];   if(chk.type == "checkbox" && chk.checked){     var spmc = rsRows[i].cells[this.spmc_pos].innerText;    returnVal[j] = spmc;    j++;   }  }  window.returnValue = returnVal;  self.close(); 3. Array.prototype.contains = function(key) {   var isSearched = false;  for(var i = 0; i < this.length; i++) {    if(this[i] == key) {     isSearched = true;    break;   } else {     continue;   }  }  return isSearched; }; Array.prototype.indexOf = function(val){   for(var i=0;i < this.length;i++){    if(this[i] == val){     return i;   }  }  return -1; } Array.prototype.remove = function(key){   var index = this.indexOf(key);  if(index > -1){    this.splice(index,1)  } }

2016/1/28

 1.好记性不如烂笔头。   window.history.go(-1);   location.href="home.jsp";    window.open(url);   window.opener.doquery()/.init();   window.close(); 2.

2016/2/1(在出问题时，要注意《单词拼错》)

 1.取table中点击触发事件的那一行  var currRow = (event.srcElement || event.target).parentNode.parentNode;  currRow.cells[this.lysq_pos/0/1].innerHTML 2.圆角IE6-8不兼容，IE9+兼容，需要下载插件ie-css3.htc   css3:   border-radius:30px; 3.mysql取id最大的记录   select * from bghc_splcmx where id=(select max(id) from bghc_splcmx)   select * from bghc_splcmx order by id desc limit 0,1