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View Code 1 using System; 2 public class GetValue 3 { 4 /*为People扩展一个方法ToValue 5 要求为：能把People里面所有属性的值打印出来*/ 6 public static void Main() 7 { 8 People people = new People(); 9 people.Get("康熙",300);10 }11 }12 public static class ToValue13 {14 public static void G... 阅读全文
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View Code 1 //问题:1，查询出str中以@符号开头的 2 //2，查询出Str中元素长度大于5的元素 3 using System; 4 using System.Linq; 5 public class StudyLinq 6 { 7 public static void Main() 8 { 9 string[] str = {"abcd","apple","@symjie","banana","orange"};10 var s = str.Where(p=>p.Sta 阅读全文
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View Code 1 //1，查询出list中所有女生并且年龄小于18，并按降序排列 2 //2，查询出list中名字为“王”开头，并且长度为3的学生 3 using System; 4 using System.Collections.Generic; 5 using System.Linq; 6 public class StudyLinq 7 { 8 public static void Main() 9 {10 List<People> list = new List<People>();11 list.Add(new People(... 阅读全文
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View Code 1 //实现checkbox的全选和取消 2 <script type="text/javascript"> 3 function all(all){ 4 var checkbox = document.getElementsByName("select"); 5 if (all.checked){ 6 for (i = 0;i<checkbox.length ;i++ ) 7 { 8 checkbox[i].checked = true; 9 ... 阅读全文
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View Code 1 //实现局部遮罩 2 <script type="text/javascript"> 3 function Shade(){ 4 var s = document.getElementById("shade"); 5 s.style.display = "block"; 6 } 7 function Display(){ 8 var d = document.getElementById("shade"); 9 d.style.display = "none" 阅读全文