工作整理收集
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?? //在本页面操作父页面
?? opener.location.reload()??? //上一个页面重新刷新
?? window.opener.document.getElementById("id").innerHTML="";? //指定上一个页面元素的值
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??? //js 截取页面提交过来的路径地址
??? var str=document.getElementById("name").value;
??? document.write(str.substring(str.lastIndexOf("\")+1))
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?? //-----------------------------------按回车键提交
?? 电话号码：<input type="text"? onkeydown="javascript:onkey(event);" style="width:110px"/>
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??????? function onkey(e)? {
??????????? var keyCode = e.keyCode ? e.keyCode : e.which ? e.which : e.charCode;
??????????? if (keyCode == 13) {
??????????? ?submitIt();
??????????? }
??????? }
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//--------------------------------------文本框只能填写数字
<input type="text" name="seats"? onkeyup="this.value=this.value.replace(/\D/g,'')" />
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// -------------------------------------字符串分隔开后组成一个数组
import java.util.regex.Pattern;
public class test {
?? public static void main(String[] args) {???
???? String[] x = Pattern.compile(";").split("the;darwinian;devonian;explodian;chicken");???
???? for (int i=0; i<x.length; i++) {???
?????? System.out.println(i + " "" + x[i] + """);???
???? }???
?? }???
}
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//----------------------------------------------HashMap 和Hashtable的应用和区别--------
HashMap : 允许空（null）键值（key）,是Hashtable 的轻量级实现（非线程安全的实现）
HashMap 把Hashtable 的contains 方法去掉了，改成containsvalue 和containsKey
最大的区别是: Hashtable 的方法是Synchronize 的，而HashMap 不是
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//Hashtable 的应用,取出所有的key和value
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Hashtable ?personTable = new Hashtable();
??Set<String> Persons = personTable.keySet();
??for (String Person : Persons) {
???//System.out.println(Person + "--" + personTable.get(Person));
????????? System.out.println(Person,personTable.get(Person));
??}
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?public static void main(String[] args) {???
??? Hashtable<Integer,String> ht=new Hashtable<Integer,String>();
??? ht.put(1,"Andy");
??? ht.put(2,"Bill");
??? ht.put(3,"Cindy");
??? ht.put(4,"Dell");
??? ht.put(5,"Felex");
??? ht.put(6,"Edinburg");
??? ht.put(7,"Green");
???
??? String str=ht.get(1);
?? // System.out.println(str);// Andy
??? Iterator it_key = ht.keySet().iterator();
??? //对key进行遍历
??? while (it_key.hasNext()) {
??????? Integer key = (Integer)it_key.next();
??????? System.out.println(key);
??? }
???
???
??? //对value进行遍历
??? Iterator it_value = ht.values().iterator();
??? while (it_value.hasNext()) {
??????? String value =(String) it_value.next();
??????? System.out.println(value);
??? }
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??? //取出所有的key和value
???? Set<Integer> its = ht.keySet();
???? for(int it:its){
????? System.out.println("it:"+it+":"+"----value:"+ht.get(it));
?????
???? }
?? }
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//-----------------------------
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??? Date currentTime = new Date();??
???????? SimpleDateFormat formatter = new SimpleDateFormat("yyyy-mm-dd hh:mm:ss");??
???????? String dateString = formatter.format(currentTime);??
???????? System.out.println(dateString);
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//-------------------------------------游标(for查询)------------------------
declare @CusName varchar(5000)
?declare Cursor_Customer Cursor for select CusName from? #temp1
???? open Cursor_Customer
??fetch next from Cursor_Customer into @CusName
??while @@fetch_status=0
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???begin
??????????? print @CusName
???? fetch next from Cursor_Customer into? @CusName
???end
???? close Cursor_Customer
?Deallocate Cursor_Customer
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//电脑保护色
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色调:84?? 饱和度:123? 亮度: 205
红: 199?? 绿: 237?????? 蓝:??? 203
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//文本域去掉下拉框和小按钮
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<textarea? style="font-size:14px;overflow:hidden;background:transparent;border-style:none;width:550px;height:50px;" >textarea>
