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js代码怎么用？js代码大全使用方法

更新时间：2026-08-22 12:32:20 | 编辑：离沫 | 信息来源：互联网
js代码怎么用？今天winwin7小编将给大家认识下一些常用的js代码，以及js代码的详细使用方法。对于刚入门的你来说能起到不少的帮助，大家一起和小编往下看吧。

首先小编给大家介绍下常用的js代码：

事件源对象 event.srcElement.tagName event.srcElement.type捕获释放 event.srcElement.setCapture();  event.srcElement.releaseCapture();  事件按键 event.keyCode event.shiftKey event.altKey event.ctrlKey事件返回值 event.returnValue鼠标位置 event.x event.y窗体活动元素 document.activeElement绑定事件 document.captureEvents(Event.KEYDOWN);访问窗体元素 document.all("txt").focus(); document.all("txt").select();窗体命令 document.execCommand窗体COOKIE document.cookie菜单事件 document.oncontextmenu创建元素 document.createElement("SPAN");  根据鼠标获得元素： document.elementFromPoint(event.x,event.y).tagName=="TD document.elementFromPoint(event.x,event.y).appendChild(ms)  窗体图片 document.images[索引]窗体事件绑定 document.onmousedown=scrollwindow;元素 document.窗体.elements[索引]对象绑定事件 document.all.xxx.detachEvent(‘onclick‘,a);插件数目 navigator.plugins取变量类型 typeof($js_libpath) == "undefined"下拉框 下拉框.options[索引] 下拉框.options.length查找对象 document.getElementsByName("r1"); document.getElementById(id);定时 timer=setInterval(‘scrollwindow()‘,delay); clearInterval(timer);UNCODE编码 escape() ,unescape父对象 obj.parentElement(dhtml) obj.parentNode(dom)交换表的行 TableID.moveRow(2,1)替换CSS document.all.csss.href = "a.css";并排显示 display:inline隐藏焦点 hidefocus=true根据宽度换行 style="word-break:break-all"自动刷新 简单邮件   快速转到位置 obj.scrollIntoView(true)锚  anchors网页传递参数 location.search();可编辑 obj.contenteditable=true执行菜单命令 obj.execCommand双字节字符 /[^/x00-/xff]/ 汉字 /[/u4e00-/u9fa5]/让英文字符串超出表格宽度自动换行 word-wrap: break-word; word-break: break-all;透明背景 获得style内容 obj.style.cssTextHTML标签 document.documentElement.innerHTML第一个style标签 document.styleSheets[0]style标签里的第一个样式 document.styleSheets[0].rules[0]防止点击空链接时，页面往往重置到页首端。 word上一网页源 asp: request.servervariables("HTTP_REFERER") javascript： document.referrer释放内存 CollectGarbage();禁止右键 document.oncontextmenu = function() { return false;}禁止保存 禁止选取 favicon.ico 名字最好不变16*16的16色,放虚拟目录根目录下收藏栏图标 查看源码 关闭输入法 自动全选 ENTER键可以让光标移到下一个输入框 文本框的默认值 title换行 obj.title = "123 sdfs "获得时间所代表的微秒 var n1 = new Date("2004-10-10".replace(/-/g, "//")).getTime()窗口是否关闭 win.closed checkbox扁平 
获取选中内容 document.selection.createRange().duplicate().text自动完成功能 打开该功能  关闭该功能窗口最大化 无关闭按钮
IE window.open("aa.htm", "meizz", "fullscreen=7");统一编码/解码
alert(decodeURIComponent(encodeURIComponent("http://你好.com?as= hehe"))) encodeURIComponent对":"、"/"、";" 和 "?"也编码

下面小编给大家分享下js代码使用方法：

1、新建个记事本，打开记事本在里面输入下面代码： <%@ page language="java" contentType="text/html;charset=UTF-8" %><%@ taglib prefix="s" uri="/struts-tags" %>你的标题2、把你上面的按步骤加到相应的地方，如下<%@ page language="java" contentType="text/html;charset=UTF-8"%><%@ taglib prefix="s" uri="/struts-tags"%>Hello World2、点击文件--另存为，将保存类型改成.html，输入任意一个文件名，点击保存；3、双击打开刚保存的html就可以看到内容了 不过，如果你想做网站，还是下个DW或者MyEclipse

以上便是winwin7小编给大家介绍的关于js代码的使用方法1

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  1. 模型: /www/wwwroot/www.pjwan.com/lecms/model/
  2. 视图: /www/wwwroot/www.pjwan.com/view/ww7/jc_show.htm
  3. 控制器: /www/wwwroot/www.pjwan.com/lecms/control/show_control.class.php
  4. 日志目录: /www/wwwroot/www.pjwan.com/log/
  5. 当前页面: /www/wwwroot/www.pjwan.com/index.php
  6. 当前时间: 2026-08-22 12:32:19
  7. 当前网协: 216.73.216.20
  8. 请求路径: /rjjc/7541.html
  9. 运行时间: 1.3222
  10. 内存开销: 1.33 MB
  1. #0 [time:0.0003s] SELECT * FROM le_runtime WHERE k='cfg' LIMIT 1
  2. #1 [time:0.0002s] SELECT * FROM le_runtime WHERE k='website_group_ali213_pjwan_com' LIMIT 1
  3. #2 [time:0.0002s] SELECT id FROM le_website_group WHERE webdomain='ali213.pjwan.com' AND is_active=1 ORDER BY id ASC LIMIT 0,1
  4. #3 [time:0.0003s] SELECT id FROM le_website_group WHERE webdomain='ali213.pjwan.com' AND is_active=1 ORDER BY id ASC LIMIT 0,1
  5. #4 [time:0.0002s] SELECT id FROM le_website_group WHERE webdomain='ali213.pjwan.com' AND is_active=1 ORDER BY id ASC LIMIT 0,1
  6. #5 [time:0.0002s] SELECT * FROM le_runtime WHERE k='cate_67' LIMIT 1
  7. #6 [time:0.0002s] SELECT id FROM le_website_group WHERE webdomain='ali213.pjwan.com' AND is_active=1 ORDER BY id ASC LIMIT 0,1
  8. #7 [time:0.0003s] SELECT * FROM le_cms_article WHERE id=7541 LIMIT 1
  9. #8 [time:0.0002s] SELECT id FROM le_website_group WHERE webdomain='ali213.pjwan.com' AND is_active=1 ORDER BY id ASC LIMIT 0,1
  10. #9 [time:0.0003s] SELECT id FROM le_website_group WHERE webdomain='ali213.pjwan.com' AND is_active=1 ORDER BY id ASC LIMIT 0,1
  11. #10 [time:0.0003s] SELECT * FROM le_user WHERE uid=2 LIMIT 1
  12. #11 [time:0.0002s] SELECT * FROM le_cms_article_data WHERE id=7541 LIMIT 1
  13. #12 [time:0.0002s] SELECT * FROM le_cms_article_views WHERE id=7541 LIMIT 1
  14. #13 [time:0.0003s] UPDATE LOW_PRIORITY le_cms_article_views SET views=views+1 WHERE id=7541 LIMIT 1
  15. #14 [time:0.0002s] SELECT id FROM le_cms_article WHERE id<7541 ORDER BY id DESC LIMIT 0,1
  16. #15 [time:0.0002s] SELECT * FROM le_cms_article WHERE id=7540
  17. #16 [time:0.0002s] SELECT id FROM le_cms_article WHERE id>7541 ORDER BY id ASC LIMIT 0,1
  18. #17 [time:0.0002s] SELECT * FROM le_cms_article WHERE id=7542
  19. #18 [time:0.0002s] SELECT * FROM le_kv WHERE k='navigate' LIMIT 1
  20. #19 [time:0.0003s] SELECT tagid,id FROM le_cms_article_tag_data WHERE tagid=978 ORDER BY id DESC LIMIT 0,11
  21. #20 [time:0.0004s] SELECT * FROM le_cms_article_tag_data WHERE tagid=978 AND id=94609 OR tagid=978 AND id=94336 OR tagid=978 AND id=92122 OR tagid=978 AND id=92116 OR tagid=978 AND id=92073 OR tagid=978 AND id=92051 OR tagid=978 AND id=92034 OR tagid=978 AND id=89425 OR tagid=978 AND id=86201 OR tagid=978 AND id=80026 OR tagid=978 AND id=79834
  22. #21 [time:0.0005s] SELECT * FROM le_cms_article WHERE id=94609 OR id=94336 OR id=92122 OR id=92116 OR id=92073 OR id=92051 OR id=92034 OR id=89425 OR id=86201 OR id=80026
  23. #22 [time:0.0003s] SELECT cid FROM le_category ORDER BY orderby ASC ,cid ASC
  24. #23 [time:0.0015s] SELECT * FROM le_category WHERE cid=1 OR cid=2 OR cid=3 OR cid=4 OR cid=5 OR cid=6 OR cid=7 OR cid=8 OR cid=9 OR cid=10 OR cid=11 OR cid=12 OR cid=13 OR cid=14 OR cid=15 OR cid=16 OR cid=17 OR cid=18 OR cid=19 OR cid=20 OR cid=21 OR cid=22 OR cid=23 OR cid=24 OR cid=25 OR cid=26 OR cid=27 OR cid=28 OR cid=29 OR cid=30 OR cid=31 OR cid=32 OR cid=33 OR cid=34 OR cid=35 OR cid=36 OR cid=37 OR cid=38 OR cid=39 OR cid=40 OR cid=41 OR cid=42 OR cid=43 OR cid=44 OR cid=45 OR cid=46 OR cid=47 OR cid=48 OR cid=49 OR cid=50 OR cid=51 OR cid=52 OR cid=53 OR cid=54 OR cid=55 OR cid=56 OR cid=57 OR cid=58 OR cid=59 OR cid=60 OR cid=61 OR cid=62 OR cid=63 OR cid=64 OR cid=65 OR cid=66 OR cid=67 OR cid=68 OR cid=69 OR cid=70 OR cid=71 OR cid=72 OR cid=73 OR cid=74 OR cid=75 OR cid=76 OR cid=77 OR cid=78 OR cid=79 OR cid=80 OR cid=81 OR cid=82 OR cid=83 OR cid=84 OR cid=85 OR cid=86 OR cid=87 OR cid=88 OR cid=89 OR cid=90 OR cid=91 OR cid=92 OR cid=93 OR cid=94 OR cid=95 OR cid=96 OR cid=97 OR cid=98 OR cid=99 OR cid=100 OR cid=101 OR cid=102 OR cid=103 OR cid=104 OR cid=105 OR cid=106 OR cid=107 OR cid=108 OR cid=109 OR cid=110 OR cid=111 OR cid=112 OR cid=113 OR cid=114 OR cid=115 OR cid=116 OR cid=117 OR cid=118 OR cid=119 OR cid=120 OR cid=121 OR cid=122 OR cid=123 OR cid=124 OR cid=125 OR cid=126 OR cid=127 OR cid=128
  25. #24 [time:0.0002s] SELECT id FROM le_cms_article_views WHERE cid=67 ORDER BY views DESC LIMIT 0,10
  26. #25 [time:0.0003s] SELECT * FROM le_cms_article_views WHERE id=803 OR id=14530 OR id=102 OR id=63443 OR id=615 OR id=518 OR id=486 OR id=883 OR id=364 OR id=63444
  27. #26 [time:0.0005s] SELECT * FROM le_cms_article WHERE id=803 OR id=14530 OR id=102 OR id=63443 OR id=615 OR id=518 OR id=486 OR id=883 OR id=364 OR id=63444
  28. #27 [time:0.0002s] SELECT * FROM le_runtime WHERE k='cate_85' LIMIT 1
  29. #28 [time:0.0002s] SELECT id FROM le_website_group WHERE webdomain='ali213.pjwan.com' AND is_active=1 ORDER BY id ASC LIMIT 0,1
  30. #29 [time:0.0005s] SELECT id FROM le_cms_win WHERE (cid=86 OR cid=87 OR cid=88 OR cid=89 OR cid=90 OR cid=91 OR cid=92 OR cid=93 OR cid=94 OR cid=95 OR cid=96 OR cid=97 OR cid=98 OR cid=99 OR cid=100) ORDER BY id DESC LIMIT 0,10
  31. #30 [time:0.0004s] SELECT * FROM le_cms_win WHERE id=1027 OR id=1026 OR id=1025 OR id=1024 OR id=1023 OR id=1022 OR id=1021 OR id=1020 OR id=1019 OR id=1018
  32. #31 [time:0.0002s] SELECT * FROM le_runtime WHERE k='cate_64' LIMIT 1
  33. #32 [time:0.0002s] SELECT id FROM le_website_group WHERE webdomain='ali213.pjwan.com' AND is_active=1 ORDER BY id ASC LIMIT 0,1
  34. #33 [time:0.0004s] SELECT id FROM le_cms_article WHERE (cid=65 OR cid=66 OR cid=67 OR cid=68 OR cid=125 OR cid=126 OR cid=127 OR cid=128) ORDER BY id DESC LIMIT 0,10
  35. #34 [time:0.0004s] SELECT * FROM le_cms_article WHERE id=103563 OR id=103562 OR id=103561 OR id=103560 OR id=103559 OR id=103558 OR id=103557 OR id=103556 OR id=103555 OR id=103554
  1. #control => show
  2. #action => index
  3. #cid => 67
  4. #id => 7541
  5. #mid => 2
      1. #0 /www/wwwroot/www.pjwan.com/index.php
      2. #1 /www/wwwroot/www.pjwan.com/lecms/xiunophp/xiunophp.php
      3. #2 /www/wwwroot/www.pjwan.com/lecms/config/config.inc.php
      4. #3 /www/wwwroot/www.pjwan.com/lecms/xiunophp/lib/base.func.php
      5. #4 /www/wwwroot/www.pjwan.com/lecms/xiunophp/lib/core.class.php
      6. #5 /www/wwwroot/www.pjwan.com/lecms/xiunophp/lib/debug.class.php
      7. #6 /www/wwwroot/www.pjwan.com/lecms/xiunophp/lib/log.class.php
      8. #7 /www/wwwroot/www.pjwan.com/lecms/xiunophp/lib/model.class.php
      9. #8 /www/wwwroot/www.pjwan.com/lecms/xiunophp/lib/view.class.php
      10. #9 /www/wwwroot/www.pjwan.com/lecms/xiunophp/lib/control.class.php
      11. #10 /www/wwwroot/www.pjwan.com/lecms/xiunophp/db/db.interface.php
      12. #11 /www/wwwroot/www.pjwan.com/lecms/xiunophp/db/db_pdo_mysql.class.php
      13. #12 /www/wwwroot/www.pjwan.com/lecms/xiunophp/cache/cache.interface.php
      14. #13 /www/wwwroot/www.pjwan.com/lecms/xiunophp/cache/cache_memcache.class.php
      15. #14 /www/wwwroot/www.pjwan.com/lecms/xiunophp/ext/network/Network__interface.php
      16. #15 /www/wwwroot/www.pjwan.com/lecms/config/plugin.inc.php
      17. #16 /www/wwwroot/www.pjwan.com/lecms/plugin/editor_sd/conf.php
      18. #17 /www/wwwroot/www.pjwan.com/lecms/plugin/editor_tinymce/conf.php
      19. #18 /www/wwwroot/www.pjwan.com/lecms/plugin/editor_um/conf.php
      20. #19 /www/wwwroot/www.pjwan.com/lecms/plugin/le_adminer/conf.php
      21. #20 /www/wwwroot/www.pjwan.com/lecms/plugin/le_baidu_zz/conf.php
      22. #21 /www/wwwroot/www.pjwan.com/lecms/plugin/le_category_filter/conf.php
      23. #22 /www/wwwroot/www.pjwan.com/lecms/plugin/le_content_tag_url/conf.php
      24. #23 /www/wwwroot/www.pjwan.com/lecms/plugin/le_data_table_split/conf.php
      25. #24 /www/wwwroot/www.pjwan.com/lecms/plugin/le_drafts/conf.php
      26. #25 /www/wwwroot/www.pjwan.com/lecms/plugin/le_feedback/conf.php
      27. #26 /www/wwwroot/www.pjwan.com/lecms/plugin/le_homepage_feign/conf.php
      28. #27 /www/wwwroot/www.pjwan.com/lecms/plugin/le_html_cache/conf.php
      29. #28 /www/wwwroot/www.pjwan.com/lecms/plugin/le_links/conf.php
      30. #29 /www/wwwroot/www.pjwan.com/lecms/plugin/le_minganci_do/conf.php
      31. #30 /www/wwwroot/www.pjwan.com/lecms/plugin/le_rand404content/conf.php
      32. #31 /www/wwwroot/www.pjwan.com/lecms/plugin/le_rand_author/conf.php
      33. #32 /www/wwwroot/www.pjwan.com/lecms/plugin/le_rand_pic_cid/conf.php
      34. #33 /www/wwwroot/www.pjwan.com/lecms/plugin/le_sharejs/conf.php
      35. #34 /www/wwwroot/www.pjwan.com/lecms/plugin/le_slide/conf.php
      36. #35 /www/wwwroot/www.pjwan.com/lecms/plugin/le_special_pro/conf.php
      37. #36 /www/wwwroot/www.pjwan.com/lecms/plugin/le_spider/conf.php
      38. #37 /www/wwwroot/www.pjwan.com/lecms/plugin/le_super_sitemap/conf.php
      39. #38 /www/wwwroot/www.pjwan.com/lecms/plugin/le_title_pic/conf.php
      40. #39 /www/wwwroot/www.pjwan.com/lecms/plugin/le_use_del_id/conf.php
      41. #40 /www/wwwroot/www.pjwan.com/lecms/plugin/le_webp_oss/conf.php
      42. #41 /www/wwwroot/www.pjwan.com/lecms/plugin/le_website_group/conf.php
      43. #42 /www/wwwroot/www.pjwan.com/lecms/plugin/le_zhanqunsitemaps_pro_v303/conf.php
      44. #43 /www/wwwroot/www.pjwan.com/lecms/plugin/lu_huochetou/conf.php
      45. #44 /www/wwwroot/www.pjwan.com/lecms/plugin/models_filed/conf.php
      46. #45 /www/wwwroot/www.pjwan.com/lecms/plugin/qrcode/conf.php
      47. #46 /www/wwwroot/www.pjwan.com/lecms/plugin/sy_mobile/conf.php
      48. #47 /www/wwwroot/www.pjwan.com/runcache/misc.func.php
      49. #48 /www/wwwroot/www.pjwan.com/runcache/core_lang/zh-cn.php
      50. #49 /www/wwwroot/www.pjwan.com/runcache/lang/zh-cn.php
      51. #50 /www/wwwroot/www.pjwan.com/runcache/lecms_control/parseurl_control.class.php
      52. #51 /www/wwwroot/www.pjwan.com/runcache/lecms_model/runtime_model.class.php
      53. #52 /www/wwwroot/www.pjwan.com/runcache/lecms_model/website_group_model.class.php
      54. #53 /www/wwwroot/www.pjwan.com/runcache/lecms_control/show_control.class.php
      55. #54 /www/wwwroot/www.pjwan.com/runcache/lecms_control/base_control.class.php
      56. #55 /www/wwwroot/www.pjwan.com/runcache/lecms_model/urls_model.class.php
      57. #56 /www/wwwroot/www.pjwan.com/runcache/lecms_model/category_model.class.php
      58. #57 /www/wwwroot/www.pjwan.com/runcache/lecms_model/cms_content_model.class.php
      59. #58 /www/wwwroot/www.pjwan.com/runcache/lecms_view/ww7,jc_show.htm.php
      60. #59 /www/wwwroot/www.pjwan.com/runcache/lecms_model/cms_content_data_model.class.php
      61. #60 /www/wwwroot/www.pjwan.com/runcache/lecms_model/cms_content_tag_model.class.php
      62. #61 /www/wwwroot/www.pjwan.com/runcache/lecms_model/user_model.class.php
      63. #62 /www/wwwroot/www.pjwan.com/runcache/lecms_model/cms_content_views_model.class.php
      64. #63 /www/wwwroot/www.pjwan.com/runcache/lecms_model/kv_model.class.php
      65. #64 /www/wwwroot/www.pjwan.com/runcache/lecms_model/cms_content_tag_data_model.class.php
      66. #65 /www/wwwroot/www.pjwan.com/lecms/xiunophp/tpl/sys_trace.php