JS觸發(fā)器基礎(chǔ)_第1頁(yè)
JS觸發(fā)器基礎(chǔ)_第2頁(yè)
JS觸發(fā)器基礎(chǔ)_第3頁(yè)
JS觸發(fā)器基礎(chǔ)_第4頁(yè)
JS觸發(fā)器基礎(chǔ)_第5頁(yè)
已閱讀5頁(yè)，還剩19頁(yè)未讀， 繼續(xù)免費(fèi)閱讀

下載本文檔

版權(quán)說(shuō)明：本文檔由用戶提供并上傳，收益歸屬內(nèi)容提供方，若內(nèi)容存在侵權(quán)，請(qǐng)進(jìn)行舉報(bào)或認(rèn)領(lǐng)

文檔簡(jiǎn)介

1、1 onblur事件會(huì)在對(duì)象失去焦點(diǎn)時(shí)發(fā)生。語(yǔ)法on blur=zzsomejavascriptcodez，參數(shù)描述somejavascriptcode必需。規(guī)定該事件發(fā)牛時(shí)執(zhí)行的javascript。支持該事件的html標(biāo)簽:<a>, <acronym>, address， <area>, <button>, caption>, <cite>, <dd>, <b>, <bdo>, <big>, blockquote, <del>, <dfn>, <d

2、iv>, <dl>, <dt>,<cm>, <ficlclsct>, <form>, <framc>,<framcsct>, <hl> to <h6>, <hr>, <i>,<iframe>, <img>, <input>, <ins>, <object>, <ol>, <p>, <pre>, <q>, <strong>, <sub&

3、gt;, <sup>, <table>, <th>, <thead>, <tr>, <tt>, <ul>, <kbd>, <label>, <legend>, <li>, <samp>, <select>, <small>, <span>, <tbody>, <td>, <textarea>, <tfoot>, <var>支持該事件的javascript對(duì)象

4、:button, checkbox, fileupload, layer, frame, password, radio, reset, submit, text, textarea, window實(shí)例1在木例中，我們將在用戶離開(kāi)輸入框時(shí)執(zhí)行javascript代碼:<html><head><script type二text/javascriptz，> function uppercase()var x二document. getelementbyld (“fname，z). valuedocument. getel ementbytd (，fname/，)

5、. value=x. touppercase () </script></head><body>輸入您的姓名:<input type二text" id二fname onblur=，uppercase ()/> </body></html>2當(dāng)改變選擇時(shí)調(diào)用的事件句柄。語(yǔ)法selectobject. onchange說(shuō)明select對(duì)象的onchange屬性引用了一個(gè)事件句柄函數(shù)。當(dāng)用戶選中一個(gè)選項(xiàng), 或者取消了對(duì)一個(gè)選項(xiàng)的選定時(shí)，就會(huì)調(diào)用該句柄。這個(gè)事件不會(huì)指定新的選項(xiàng) 是什么，必須通過(guò)select對(duì)象的sele

6、ctedtndex屬性，或者各個(gè)option對(duì) 彖的selected屈性來(lái)確定這一點(diǎn)。3 select()方法用于選擇該元素中的文本。語(yǔ)法tcxtarcaobjcct onchangc說(shuō)明textarea的onchange屬性引用了一個(gè)事件句柄函數(shù)，當(dāng)用戶改變文木區(qū)域的 值然后通過(guò)把鍵盤(pán)焦點(diǎn)移動(dòng)到其他地方“確認(rèn)”這些改變的時(shí)候，調(diào)用該句柄。請(qǐng)注意，當(dāng)一個(gè)text對(duì)彖的value屬性通過(guò)javeiscript設(shè)置的時(shí)候， onchange事件句柄不會(huì)調(diào)用。還要注意，該句柄是為了處理對(duì)輸入值的一次完 整改變，因此，它不會(huì)在逐個(gè)按鍵的基礎(chǔ)上調(diào)用。4 onclick事件會(huì)在對(duì)象被點(diǎn)擊時(shí)發(fā)生。請(qǐng)注意，o

7、nclick與onmousedown不同。單擊事件是在同一元素上發(fā)生了鼠標(biāo) 按下事件之后又發(fā)生了鼠標(biāo)放開(kāi)事件時(shí)才發(fā)生的。語(yǔ)法oncl ick=，zsomejavascr iptcode，z參數(shù)描述somejavascriptcode必需。規(guī)定該事件發(fā)牛時(shí)執(zhí)行的javascripto支持該事件的html標(biāo)簽：<a>, address， <area>, <b>, <bdo>, <big>, <blockquote>, <body>, button，<caption>, citc>, <cod

8、c>, dd>, <dfn>, <div>, <dl>, <dt>, <cm>,<fieldset>,<form>, <hl> to <h6>, <hr>, <i>, <img>, <input>, <kbd>, <label>, <legend>, <li>, <map>, <object>, <ol>, <p>, <pre&

9、gt;, <samp>, <select>, <small>, <span>,strong>, <sub>, <sup>, table， tbody， <td>, <tcxtarca>, <tfoot>, <th>,<thead>, <tr>, <tt>, <ul>, <var>支持該事件的javascript對(duì)象：button, document, checkbox, link， radio, reset,

10、submit實(shí)例1在木例中，當(dāng)按鈕被單擊時(shí)，第一個(gè)輸入框中的文木會(huì)被拷貝到第二個(gè)輸入框中:<html>bodyfieldl: <input type二text" id二fieldl" value二hello world!/z><br />field2: <input type二text" id二field2><br /xbr />點(diǎn)擊下面的按鈕，把fieldl的內(nèi)容拷貝到field2中：<br /><button onclick二document. getelementbyld（，fie

11、ld2,）. value二 document. getelementbyld（，fieldt）. value>copy text</button>5 ondblclick事件會(huì)在對(duì)象被雙擊時(shí)發(fā)生。語(yǔ)法ondblcli ck二somejavascri ptcode參數(shù)描述somejavascriptcode必需。規(guī)定該事件發(fā)牛時(shí)執(zhí)行的javascript。支持該事件的html標(biāo)簽：<a>, address， <area>, <b>, <bdo>, <big>, blockquote， <body>, <

12、;button>, <caption>, <cite>, <code>, <dd>, <dfn>, <div>, <dl>, <dt>, <cm>, <ficldsct>, <form>, <hl> toh6>, <hr>, <i>, <img>, <input>, <kbd>, <label>, <legend>, <li>, <map&

13、gt;, <object>, <ol>, <p>, <pre>, <samp>, <select>, <small>, <span>, <strong>, <sub>, <sup>, <table>, <tbody>, <td>, <textarea>, <tfoot>, <th>, <thead>, <tr>, <tt>, <ul>, <

14、var>支持該事件的javascript對(duì)象：document, link實(shí)例1在本例中，當(dāng)您雙擊按鈕時(shí)，第二個(gè)域中內(nèi)容會(huì)根據(jù)第一個(gè)域的內(nèi)容而改變：<html><body>ficldl: <input type二"text" id二"ficldl" value二hello world! z，><br />field2: <input type二text" id二field2"><br /xbr />雙擊下面的按鈕,把fieldl的內(nèi)容拷貝到field2中:&

15、lt;br /><button ondblclick二document. getelementbyld(' fielc!2') value二 document. getelementbyld (，fieldl，). value，z>copy text</button>6 onerror事件會(huì)在文檔或圖像加載過(guò)程中發(fā)生錯(cuò)誤時(shí)被觸發(fā)。 在裝載文檔或圖像的過(guò)程中如果發(fā)生了錯(cuò)誤，就會(huì)調(diào)用該事件句柄。語(yǔ)法on error 二"some javeiscriptcodc"參數(shù)描述somejavascriptcode必需。規(guī)定該事件發(fā)生吋執(zhí)行的

16、javascript。支持該事件的html標(biāo)簽：<img>, object， style支持該事件的javascript對(duì)象：window, image實(shí)例1在本例中，如果裝載圖像時(shí)發(fā)生了錯(cuò)誤，則顯示一個(gè)對(duì)話框：loaded.')"<img sre二image. gif onerror二"alert ('the image could not be/>7 onfocus事件在對(duì)象獲得焦點(diǎn)時(shí)發(fā)生。語(yǔ)法onfocus二somejavascriptcode"參數(shù)描述somejavascriptcode必需。規(guī)定該事件發(fā)牛時(shí)執(zhí)行的j

17、avascript。支持該事件的html標(biāo)簽：<a>, <acronym>, <address>, <area>, <b>, <bdo>, <big>, blockquote, button，<caption>,cite，<dd>, <del>, <dfn>, <div>, <dl>, <dt>, <em>,<fieldset>,<form>, <frame>, <frame

18、set>, <hl> to <h6>, <hr>, <i>, <iframe>, <img>, input>,<ins>, <kbd>,label，<legend>, <li>, <object>, <ol>, <p>, <pre>, <q>, <samp>, select， <small>, <span>, strong， <sub>, <sup&g

19、t;, <table>, <tbody>,<td>, <textarea>, <tfoot>, <th>, <thead>, <tr>, <tt>, <ul>, <var>支持該事件的javascript對(duì)象：button, checkbox, fileupload, layer, frame, password, radio, reset, select, submit,text, textarea, window實(shí)例在本例中，當(dāng)輸入框獲得焦點(diǎn)時(shí)，其背景顏色將改

20、變：<html><head><script type二"text/javascript"function sctstylc(x)document. getelementbvld(x). style, background二yellow"</script></hcad><body>first name: <input type二text"onfocus二"sctstylc(thisid) " id二"fnanic" /><br /&g

21、t;last name: <input type二text"onfocus二setstyle (this, id) id二ame，z /> </body></html>8 onkeydown事件會(huì)在用戶按下一個(gè)鍵盤(pán)按鍵時(shí)發(fā)生。語(yǔ)法onkeydown二"somejavascri ptcode參數(shù)描述somejavascriptcode必需。規(guī)定該事件發(fā)牛時(shí)執(zhí)行的javascript。支持該事件的html標(biāo)簽：<a>, <acronym>, <address>, <area>, <b>

22、;, <bdo>, <big>, <blockquote>, <body>,<button>, <caption>, <citc>, <code>, <dd>, <del>, <dfn>, <div>, <dt>, <em>,<fieldset>, <form>, <hl> to <h6>, <hr>, <i>, <input>, <kbd

23、>, <label>, <lege nd>,<li>, <map>, <object>, <ol>, <p>, <pre>, <q>, <seimp>, <select>, <small>, <span>,strong>, <sub>, <sup>,tablc>, <tbody>,td>,tcxtarca>, <tfoot>,<th>, <the

24、ad>, <tr>, <tt>, <ul>, <var>支持該事件的javascript對(duì)象：document, image, link, textarea提示和注釋瀏覽器差異：internet explorer使用event. keycode取冋被按下的字符，而 netscape/fircfox/opera 使用 event, whicho實(shí)例在木例中，用戶無(wú)法在輸入框中鍵入數(shù)字：<html><body><script type二text/javascript>function nonumbers (e

25、) var keynum var keychar var numcheck if (window. cvent) / iekeynum = e.keycodeelse if (e. which) / netscape/firefox/operakeynum = e. whichkeychar = string.fromcharcode(keynum)numcheck 二 /d/ return !numcheck, test(keychar)</script><form><input type二text" onkeydown二return nonumber

26、s (event)z，/> </form></html>9 onkeypress事件會(huì)在鍵盤(pán)按鍵被按下并釋放一個(gè)鍵時(shí)發(fā)生。語(yǔ)法onkeypress二somejavascriptcode"參數(shù)描述somejavascriptcode必需。規(guī)定該事件發(fā)生時(shí)執(zhí)行的javascript。支持該事件的html標(biāo)簽：<a>, <acronym>, <address>, <area>, <b>, <bdo>, <big>, blockquote， <body>,button

27、， <caption>, <citc>, <codc>, <dd>, <dcl>, <dfn>, <div>, <dt>, <em>,<fieldset>, <form>, <hl> to <h6>, <hr>, <i>, <input>, <kbd>, <label>, <legend>,<1 i>, <map>, <object>

28、, <ol>, <p>, <pre>, <q>, <samp>, <select>, <smal 1>,<span>, <strong>, <sub>, <sup>, <table>, <tbody>, <td>, <textarea>,<tfoot>,<th>, <thead>, <tr>, <tt>, <ul>, <var>支持該

29、事件的javascript對(duì)象：document, image, link, textarea提示和注釋瀏覽器差異：internet explorer使用event. keycode取冋被按下的字符，而 nctscapc/fircfox/opcra 使用 event which。實(shí)例在本例中，用戶無(wú)法在輸入框中鍵入數(shù)字：<html><body><script type二text/javascript"function nonumbers (e)var keynumvar keycharvar numcheckif (window, event) / ie

30、keynum = e.keycodeelse if (e. which) / netscape/firefox/operakeynum = e.whichkeychar = string. fromcharcodc(keynum)numcheck = /d/return !numcheck, test(keychar)</script> <form><input type二text" onkeypress=/zreturn nonumbers (event)/z /></html>10 onkeyup事件會(huì)在鍵盤(pán)按鍵被松開(kāi)時(shí)發(fā)生。語(yǔ)法o

31、nkeyup二somejavascriptcode"參數(shù)描述somejavascriptcode必需。規(guī)定該事件發(fā)生時(shí)執(zhí)行的javascripto支持該事件的html標(biāo)簽：<a>, <acronym>, <address>, <area>, <b>, <bdo>, <big>, blockquote， <body>,button， <caption>, citc>, <codc>, dd>, <dcl>, <dfn>, <d

32、iv>, <dt>, <em>,<fieldset>, <form>, <hl> to <h6>, <hr>, <i>, <input>, <kbd>, <label>, <legend>,<1 i>, <map>, <object>, <ol>, <p>, <pre>, <q>, <samp>, <select>, <smal 1

33、>, <span>, strong>, <sub>, <sup>, table， tbody， <td>, <tcxtarca>, <tfoot>,<th>, <thead>, <tr>, <tt>, <ul>, <var>支持該事件的javascript對(duì)象：document, image, link, textarea實(shí)例當(dāng)您在例子中的輸入域中鍵入字符吋，字符會(huì)被更改為大寫(xiě)(逐一地):<html><hcad>&l

34、t;script type二text/javascript” function uppercase(x) var y二document. getelementbyld(x). value document. getelementbvid(x). value=y. touppercase() </script></hcad><body>輸入您的姓名：<input type二text" id二fname" onkcyup=/zuppercasc(thisid) " /></body></html>

35、11 online屬性是一個(gè)只讀的布爾值，聲明了系統(tǒng)是否處于脫機(jī)模式。注釋?zhuān)涸趇e 4+屮，用戶可以在瀏覽器屮選擇脫機(jī)工作的狀態(tài)。當(dāng)脫機(jī)工作被 選后，系統(tǒng)就進(jìn)入了脫機(jī)狀態(tài)，內(nèi)容將從緩存進(jìn)行讀取。語(yǔ)法navigator. online實(shí)例<html> <body><script typc=，tcxt/javascriptz，> document, write (z，<p>0nline: “)document, write(navigator. online + /p>) </script></body></htm

36、l>12 onload事件會(huì)在頁(yè)面或圖像加載完成后立即發(fā)生。語(yǔ)法onload=，/some javascr iptcodez，參數(shù)描述somejavascriptcodc必需。規(guī)定該事件發(fā)生時(shí)執(zhí)行的javascripto支持該事件的html標(biāo)簽：<body>, <framc>, <framcsct>, <iframc>, <img>, link>, <script>支持該事件的javascript對(duì)象：image, layer, window實(shí)例在本例中，文本"page is loaded'&

37、#39;會(huì)被顯示在狀態(tài)欄中：<html><head><script type=/ztext/javascript"function load()window. status二page is loaded"</script></head><body onload二load ()"></body></html>13 onmousedown事件會(huì)在鼠標(biāo)按鍵被按下時(shí)發(fā)生。語(yǔ)法on mousedow n 二"soinejavdscrip tcode"參數(shù)描述some

38、javascriptcode必需。規(guī)定該事件發(fā)生時(shí)執(zhí)行的javascripto支持該事件的html標(biāo)簽:<a>, <address>, <area>, <b>, <bdo>, <big>, blockquote， <body>, button，<caption>, <cite>, <code>, <dd>, <dfn>, <div>, <dl>, <dt>, <em>, <fieldset>,

39、<form>, <hl> to <h6>, <hr>, <i>, <img>, <input>, <kbd>, <label>, <lcgcnd>, <li>, <map>, <ol>, <p>, <pre>, <samp>, <select>,small，<span>, <strong>,<sub>, <sup>, <table>,

40、 <tbody>, <td>, <textarea>, <tfoot>, <th>, thead>, <tr>, <tt>, <ul >, <var>支持該事件的javascript對(duì)象：button, document, link實(shí)例在本例屮，當(dāng)您點(diǎn)擊下面的圖片時(shí)會(huì)彈岀一個(gè)對(duì)話框：<img src=/z/i/example_mouse2. jpg onmousedown=，zalert c you clicked the picture!')" />

41、實(shí)例2在本例屮，對(duì)話框?qū)@示出您所點(diǎn)擊的元素的標(biāo)簽名：<html><head><script type二text/javascript/z>function whichelement(e)var targif (!e) var e = window, eventif (e.target) targ 二 e.targetelse if (e.srcelernent) targ = e.srcelementif (targ. nodctypc = 3) / defeat safari bugtarg = targ. parentnodevar tnametnam

42、e=targ. tagnameal ert(you cl icked on a 77 + tname + " el ement. )</script></head><body onmousedown二"whichelement(event)"><h2>this is a header</h2><p>this is a paragraph</p><img border二0 src=，balll6. gif，z</body></html>14 onmous

43、emove事件會(huì)在鼠標(biāo)指針移動(dòng)時(shí)發(fā)生。語(yǔ)法onmousemove二somejavascriptcode"參數(shù)描述somejavascriptcode必需。規(guī)定該事件發(fā)生時(shí)執(zhí)行的javascript。支持該事件的html標(biāo)簽：<a>, address， <area>, <b>, <bdo>, <big>, <blockquote>, <body>, <button>,caption，<cite>,code，<dd>, <dfn>, <div>,

44、dl>,dt>,em>,<fieldset>,<form>, <hl> to <h6>, <hr>, <i>, <img>, <input>, <kbd>, <label>, <legend>, <li>, <map>, <ol>, <p>, <pre>, <samp>, <select>, <small>, <span>, strong&

45、gt;,<sub>, <sup>, <table>, <tbody>, <td>, <textarea>, <tfoot>, <th>, <thead>, <tr>, <tt>, <ul>, <var>支持該事件的javascript對(duì)象：onmousemove is, by default, not an event of any object,because mouse movement happens very frequently提

46、75和注釋注釋?zhuān)好慨?dāng)用戶把鼠標(biāo)移動(dòng)一個(gè)像素，就會(huì)發(fā)生一，個(gè)mousemove事件。這會(huì)耗 費(fèi)系統(tǒng)資源去處理所有這些mousemove事件。因此請(qǐng)審慎地使用該事件。實(shí)例下面的例子中，當(dāng)用戶把鼠標(biāo)移動(dòng)到圖像上時(shí)，將顯示一個(gè)對(duì)話框：<img src二/i/eg_mouse2. jpg alt二mouse" onmousemove=/，alert c您的鼠標(biāo)剛才經(jīng)過(guò)了圖片！ ）" />15 onmouseup事件會(huì)在鼠標(biāo)按鍵被松開(kāi)時(shí)發(fā)生。語(yǔ)法on mouscup=，some javascrip tcodc參數(shù)描述somejavascriptcode必需。規(guī)定該事件發(fā)生吋

47、執(zhí)行的javascript。支持該事件的html標(biāo)簽：<a>, <address>, <area>, <b>, <bdo>, <big>, <blockquote>, <body>,<button>,<caption>, <cite>, <code>, <dd>, <dfn>, <div>, <dl>, <dt>, <em>,<fieldset>,<form>

48、;, <hl> to <h6>, <hr>, <i>, <img>, <input>, <kbd>, <label>, <legend>,<li>, <map>, <ol>, <p>, <pre>, <samp>, <select>, <small>, <span>, <strong>,<sub>, <sup>, <table>, t

49、body>, <td>, <textarea>, <tfoot>, <th>, <thead>, <tr>, <tt>, <ul>, <var>支持該事件的javascript對(duì)象:button, document, link在本例屮，在點(diǎn)擊圖片并松開(kāi)鼠標(biāo)按鍵后，將顯示一個(gè)對(duì)話框:<img src=，vi/cg_mousc2 jpg" alt=/zmousc onmouseup二"alert（'您點(diǎn)擊了圖片！ ）" />輸出：（請(qǐng)點(diǎn)

50、擊圖片）:實(shí)例2在本例中，對(duì)話框中會(huì)顯示出您所點(diǎn)擊的元素的標(biāo)簽名:<html><head><script type二text/javascript/z>function whichelement(e)var targif (!e) var e = window, eventif (e.target) targ 二 e.targetelse if (e.srcelernent) targ = e.srcelementif (targ. nodctypc = 3) / defeat safari bug targ = targ. parentnodevar tn

51、ametname=targ. tagnameal ert( you clicked on a + tname + " element. )</script></head><body on mouseup 二氣hi chel eme nt (eve nt) ><h2>this is a header</h2><p>this is a paragraph</p><img border二0 src二ball 16. g辻 alt二</body></html>16 onreset

52、事件會(huì)在表單中的重置按鈕被點(diǎn)擊時(shí)發(fā)生。語(yǔ)法on reset=z，somejavascriptcode/z參數(shù)描述somcjavascriptcodc必需。規(guī)定該事件發(fā)生時(shí)執(zhí)行的javascripto支持該事件的html標(biāo)簽:<form>支持該事件的javascript對(duì)象：form實(shí)例在本例屮，當(dāng)重置按鈕被點(diǎn)擊時(shí)，表單會(huì)改為默認(rèn)值，并顯示一個(gè)對(duì)話框：<form onrcsct=/zalcrt (j the form will be reset')"firstname: <input type二text" name=zzfname，z valu

53、e二john" /><br />lastname: <input type二text" name二iname" /><br /xbr /><input type二"reset" value二"reset"</form>17 onresize事件會(huì)在窗口或框架被調(diào)整大小時(shí)發(fā)生。語(yǔ)法onresize二somejavascriptcode"參數(shù)描述somejavascriptcode必需。規(guī)定該事件發(fā)生時(shí)執(zhí)行的javascripto支持該事件的html標(biāo)簽：&l

54、t;a>, <address>, <b>, <big>, <blockquote>, <body>, <button>, <cite>, <code>,<dd>, <dfn>, <div>, <dl>, <dt>, <cm>, <fieldset>, <form>, <frame>, <hl> to <h6>,<hr>, <i>, <

55、img>, <input>, <kbd>, <label>, <legend>, <li>, <object>, <ol>, <p>,pre， <samp>, select， <small>, <span>, <strong>, sub， <sup>,<table>,<textarea， tt>, <ul>, <var>支持該事件的javascript對(duì)象：window實(shí)例在本例中，當(dāng)用

56、戶試圖調(diào)整窗口的大小吋，將顯示一個(gè)對(duì)話框：body onrcsizc=z，alcrt (j you have changcd the size of the window')"> </body>18 onselect事件會(huì)在文本框中的文本被選中時(shí)發(fā)生。語(yǔ)法onselect二somejavascriptcode"參數(shù)描述somcjavascriptcodc必需。規(guī)定該事件發(fā)生時(shí)執(zhí)行的javascripto支持該事件的html標(biāo)簽：<input type二"text">, textarca>支持該事件的javasc

57、ript對(duì)象：window實(shí)例在木例中，當(dāng)用戶試圖選擇文木框中的文木時(shí)，會(huì)顯示一個(gè)對(duì)話框：<form>select text:input typc二"text" value=，zilcllo world! onselect=/zalert c you have selected some of the text.')" /> <br /xbr />select text: textarea cols二20 rows二5onselect二alert (，you have selected some of the tcxt，)&g

58、t; hello world!</textarea></form>19 onsubmit事件會(huì)在表單中的確認(rèn)按鈕被點(diǎn)擊時(shí)發(fā)生。語(yǔ)法onsubmit=/zsomejavascriptcode/z參數(shù)描述somejavascriptcode必需。規(guī)定該事件發(fā)生時(shí)執(zhí)行的javascripto支持該事件的html標(biāo)簽：<form>支持該事件的javascript對(duì)象：form實(shí)例在本例中，當(dāng)用戶點(diǎn)擊提交按鈕吋，會(huì)顯示一個(gè)對(duì)話框：<form name=，ztestformz/ action=，jsref_onsubmi t. aspz/on submit 二&q

59、uot;alert ('hello ' + testform fn ame .v alue +'!')>what is your name?<br /><input type二text" name二fname />input type二submit" value二submi/></form>20 onunload事件在用戶退出頁(yè)面時(shí)發(fā)生。語(yǔ)法onunload二somejavascriptcode" 參數(shù)描述somejavascriptcode必需。規(guī)定該事件發(fā)牛時(shí)執(zhí)行的javascri

60、pto支持該事件的html標(biāo)簽：body， <frameset>支持該事件的javascript對(duì)象：window實(shí)例在本例中，在頁(yè)面關(guān)閉吋會(huì)顯示一個(gè)對(duì)話框：body onun load=z，alcrt (j the onunl oad eve nt was triggered')" </body>21 openo方法可打開(kāi)一個(gè)新文檔，并擦除當(dāng)前文檔的內(nèi)容。語(yǔ)法document open (mimetype,replace)參數(shù)描述mimetype可選。規(guī)定正在寫(xiě)的文檔的類(lèi)型。默認(rèn)值是"tcxt/html"。 replace可選。當(dāng)

61、此參數(shù)設(shè)置后，可引起新文檔從父文檔繼承歷史條目。說(shuō)明該方法將擦除當(dāng)前html文檔的內(nèi)容，開(kāi)始一個(gè)新的文檔，新文檔用write()方 法或writein()方法編寫(xiě)。提示和注釋 重要事項(xiàng)：調(diào)用open()方法打開(kāi)一個(gè)新文檔并且用write()方法設(shè)置文檔內(nèi) 容后，必須記住用close方法關(guān)閉文檔，并迫使其內(nèi)容顯示出來(lái)。注釋?zhuān)簩儆诒桓采w的文檔的一部分的腳木或事件句柄不能調(diào)用該方法，因?yàn)槟_木 或事件句柄自身也會(huì)被覆蓋。實(shí)例<html><head><script type二"text/javascript"function crcatenewdoc()

62、var newdoc=document. open("text/html", "replace");var txt=/，<html><body>learning about the dom is fun!</body></html>，z; newdoc. wri te (txt);ncwdoc closco ;</script></head><body><input type二"button" value二write to a new document onclick=zzcreatenewdoc ()"></body></html>22 openo方法用于打開(kāi)一個(gè)新的瀏覽器窗口或查找一個(gè)已命名的窗口。語(yǔ)法window. opcn(url, namc, features, replace)參數(shù)描述一個(gè)可選的字符串，聲明了要在新窗口中顯示的文檔的url。如果省url略了這個(gè)參

溫馨提示

  • 1. 本站所有資源如無(wú)特殊說(shuō)明，都需要本地電腦安裝OFFICE2007和PDF閱讀器。圖紙軟件為CAD,CAXA,PROE,UG,SolidWorks等.壓縮文件請(qǐng)下載最新的WinRAR軟件解壓。
  • 2. 本站的文檔不包含任何第三方提供的附件圖紙等，如果需要附件，請(qǐng)聯(lián)系上傳者。文件的所有權(quán)益歸上傳用戶所有。
  • 3. 本站RAR壓縮包中若帶圖紙，網(wǎng)頁(yè)內(nèi)容里面會(huì)有圖紙預(yù)覽，若沒(méi)有圖紙預(yù)覽就沒(méi)有圖紙。
  • 4. 未經(jīng)權(quán)益所有人同意不得將文件中的內(nèi)容挪作商業(yè)或盈利用途。
  • 5. 人人文庫(kù)網(wǎng)僅提供信息存儲(chǔ)空間，僅對(duì)用戶上傳內(nèi)容的表現(xiàn)方式做保護(hù)處理，對(duì)用戶上傳分享的文檔內(nèi)容本身不做任何修改或編輯，并不能對(duì)任何下載內(nèi)容負(fù)責(zé)。
  • 6. 下載文件中如有侵權(quán)或不適當(dāng)內(nèi)容，請(qǐng)與我們聯(lián)系，我們立即糾正。
  • 7. 本站不保證下載資源的準(zhǔn)確性、安全性和完整性, 同時(shí)也不承擔(dān)用戶因使用這些下載資源對(duì)自己和他人造成任何形式的傷害或損失。

評(píng)論

0/150

提交評(píng)論