KeyboardEvent keyCode 属性

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</a></li> <li><a href="/sw/jsref/dom_obj_image.html" title="Mfano wa Image wa DOM wa HTML"><img></a></li> <li><a href="/sw/jsref/dom_obj_ins.html" title="Mfano wa Ins wa DOM wa HTML"><ins></a></li> <li><a href="/sw/jsref/dom_obj_button.html" title="Mfano wa Input Button wa DOM wa HTML"><input> button</a></li> <li><a href="/sw/jsref/dom_obj_checkbox.html" title="Mfano wa Input Checkbox wa DOM wa HTML"><input> checkbox</a></li> <li><a href="/sw/jsref/dom_obj_color.html" title="Mfano wa Input Color wa DOM wa HTML"><input> color</a></li> <li><a href="/sw/jsref/dom_obj_date.html" title="Mfano wa Input Date wa DOM wa HTML"><input> date</a></li> <li><a href="/sw/jsref/dom_obj_datetime.html" title="Mfano wa Input Datetime wa DOM wa HTML"><input> datetime</a></li> <li><a href="/sw/jsref/dom_obj_datetime-local.html" title="Mfano wa Input DatetimeLocal wa DOM wa HTML"><input> datetime-local</a></li> <li><a href="/sw/jsref/dom_obj_email.html" title="Mfano wa Input Email wa DOM wa HTML"><input> email</a></li> <li><a href="/sw/jsref/dom_obj_fileupload.html" title="Mfano wa Input FileUpload wa DOM wa HTML"><input> file</a></li> <li><a href="/sw/jsref/dom_obj_hidden.html" title="Mfano wa Input Hidden wa DOM wa HTML"><input> hidden</a></li> <li><a href="/sw/jsref/dom_obj_input_image.html" title="Mfano wa Input Image wa DOM wa HTML"><input> image</a></li> <li><a href="/sw/jsref/dom_obj_month.html" title="Mfano wa Input Month wa DOM wa HTML"><input> month</a></li> <li><a href="/sw/jsref/dom_obj_number.html" title="Mfano wa Input Number wa DOM wa HTML"><input> number</a></li> <li><a href="/sw/jsref/dom_obj_password.html" title="Mfano wa Input Password wa DOM wa HTML"><input> password</a></li> <li><a href="/sw/jsref/dom_obj_radio.html" title="Mfano wa Input Radio wa DOM wa HTML"><input> radio</a></li> <li><a href="/sw/jsref/dom_obj_range.html" title="Mfano wa Input Range wa DOM wa HTML"><input> range</a></li> <li><a href="/sw/jsref/dom_obj_reset.html" title="Mfano wa Input Reset wa DOM wa HTML"><input> reset</a></li> <li><a href="/sw/jsref/dom_obj_search.html" title="Mfano wa Input Search wa DOM wa HTML"><input> search</a></li> <li><a href="/sw/jsref/dom_obj_submit.html" title="Mfano wa Input Submit wa DOM wa HTML"><input> submit</a></li> <li><a href="/sw/jsref/dom_obj_text.html" title="Mfano wa Input Text wa DOM wa HTML"><input> text</a></li> <li><a href="/sw/jsref/dom_obj_input_time.html" title="Mfano wa Input Time wa DOM wa HTML"><input> time</a></li> <li><a href="/sw/jsref/dom_obj_url.html" title="Mfano wa Input URL wa DOM wa HTML"><input> url</a></li> <li><a href="/sw/jsref/dom_obj_week.html" title="Mfano wa Input Week wa DOM wa HTML"><input> week</a></li> <li><a href="/sw/jsref/dom_obj_kbd.html" title="Mfano wa Kbd wa DOM wa HTML"><kbd></a></li> <li><a href="/sw/jsref/dom_obj_label.html" title="Mfano wa Label wa DOM wa HTML"><label></a></li> <li><a href="/sw/jsref/dom_obj_legend.html" title="Mfano wa Legend wa DOM wa HTML"><legend></a></li> <li><a href="/sw/jsref/dom_obj_li.html" title="Mfano wa Li wa DOM wa HTML"><li></a></li> <li><a href="/sw/jsref/dom_obj_link.html" title="Mfano wa Link wa DOM wa HTML"><link></a></li> <li><a href="/sw/jsref/dom_obj_map.html" title="Mfano wa Map wa DOM wa HTML"><map></a></li> <li><a href="/sw/jsref/dom_obj_mark.html" title="Mfano wa Mark wa DOM wa HTML"><mark></a></li> <li><a href="/sw/jsref/dom_obj_menu.html" title="Mfano wa Menu wa DOM wa HTML"><menu></a></li> <li><a href="/sw/jsref/dom_obj_menuitem.html" title="Mfano wa MenuItem wa DOM wa HTML"><menuitem></a></li> <li><a href="/sw/jsref/dom_obj_meta.html" title="Mfano wa Meta wa DOM wa HTML"><meta></a></li> <li><a href="/sw/jsref/dom_obj_meter.html" title="Mfano wa Meter wa DOM wa HTML"><meter></a></li> <li><a href="/sw/jsref/dom_obj_nav.html" title="Mfano wa Nav wa DOM wa HTML"><nav></a></li> <li><a href="/sw/jsref/dom_obj_object.html" title="Mfano wa Object wa DOM wa HTML"><object></a></li> <li><a href="/sw/jsref/dom_obj_ol.html" title="Mfano wa Ol wa DOM wa HTML"><ol></a></li> <li><a href="/sw/jsref/dom_obj_optgroup.html" title="Mfano wa OptionGroup wa DOM wa HTML"><optgroup></a></li> <li><a href="/sw/jsref/dom_obj_option.html" title="Mfano wa Option wa DOM wa HTML"><option></a></li> <li><a href="/sw/jsref/dom_obj_output.html" title="Mfano wa Output wa DOM wa HTML"><output></a></li> <li><a href="/sw/jsref/dom_obj_paragraph.html" title="Mfano wa Paragraph wa DOM wa HTML"><p></a></li> <li><a href="/sw/jsref/dom_obj_param.html" title="Mfano wa Parameter wa DOM wa HTML"><param></a></li> <li><a href="/sw/jsref/dom_obj_pre.html" title="Mfano wa Pre wa DOM wa HTML"><pre></a></li> <li><a href="/sw/jsref/dom_obj_progress.html" title="Mfano wa Progress wa DOM wa HTML"><progress></a></li> <li><a href="/sw/jsref/dom_obj_quote.html" title="Mfano wa Quote wa DOM wa HTML"><q></a></li> <li><a href="/sw/jsref/dom_obj_s.html" title="Mfano wa HTML DOM S"><s></a></li> <li><a href="/sw/jsref/dom_obj_samp.html" title="Mfano wa HTML DOM Samp"><samp></a></li> <li><a href="/sw/jsref/dom_obj_script.html" title="Mfano wa HTML DOM Script"><script></a></li> <li><a href="/sw/jsref/dom_obj_section.html" title="Mfano wa HTML DOM Section"><section></a></li> <li><a href="/sw/jsref/dom_obj_select.html" title="Mfano wa HTML DOM Select"><select></a></li> <li><a href="/sw/jsref/dom_obj_small.html" title="Mfano wa HTML DOM Small"><small></a></li> <li><a href="/sw/jsref/dom_obj_source.html" title="Mfano wa HTML DOM Source"><source></a></li> <li><a href="/sw/jsref/dom_obj_span.html" title="Mfano wa HTML DOM Span"><span></a></li> <li><a href="/sw/jsref/dom_obj_strong.html" title="Mfano wa HTML DOM Strong"><strong></a></li> <li><a href="/sw/jsref/dom_obj_sub.html" title="Mfano wa HTML DOM Subscript"><sub></a></li> <li><a href="/sw/jsref/dom_obj_summary.html" title="Mfano wa HTML DOM Summary"><summary></a></li> <li><a href="/sw/jsref/dom_obj_sup.html" title="Mfano wa HTML DOM Superscript"><sup></a></li> <li><a href="/sw/jsref/dom_obj_table.html" title="Mfano wa HTML DOM Table"><table></a></li> <li><a href="/sw/jsref/dom_obj_tbody.html" title="Mfano wa HTML DOM TBody"><tbody></a></li> <li><a href="/sw/jsref/dom_obj_tabledata.html" title="Mfano wa HTML DOM TableData"><td></a></li> <li><a href="/sw/jsref/dom_obj_tfoot.html" title="Mfano wa HTML DOM TFoot"><tfoot></a></li> <li><a href="/sw/jsref/dom_obj_tablehead.html" title="Mfano wa HTML DOM TableHeader"><th></a></li> <li><a href="/sw/jsref/dom_obj_thead.html" title="Mfano wa HTML DOM THead"><thead></a></li> <li><a href="/sw/jsref/dom_obj_tablerow.html" title="Mfano wa HTML DOM TableRow"><tr></a></li> <li><a href="/sw/jsref/dom_obj_textarea.html" title="Mfano wa HTML DOM Textarea"><textarea></a></li> <li><a href="/sw/jsref/dom_obj_time.html" title="Mfano wa HTML DOM Time"><time></a></li> <li><a href="/sw/jsref/dom_obj_title.html" title="Mfano wa HTML DOM Title"><title></a></li> <li><a href="/sw/jsref/dom_obj_track.html" title="Mfano wa HTML DOM Track"><track></a></li> <li><a href="/sw/jsref/dom_obj_u.html" title="Mfano wa HTML DOM Underline"><u></a></li> <li><a href="/sw/jsref/dom_obj_ul.html" title="Mfano wa HTML DOM Ul"><ul></a></li> <li><a href="/sw/jsref/dom_obj_var.html" title="Mfano wa HTML DOM Variable"><var></a></li> <li><a href="/sw/jsref/dom_obj_video.html" title="Mfano wa HTML DOM Video"><video></a></li> </ul> <h2>其他参考手册</h2> <ul> <li><a href="/sw/jsref/obj_cssstyledeclaration.html" title="Mfano wa CSSStyleDeclaration">CSSStyleDeclaration</a></li> <li><a href="/sw/jsref/jsref_type_conversion.html" title="Mfano wa Tukio wa Umoja wa JavaScript">JS 类型转换</a></li> </ul> </div> <div><h3><center> 选修课 </center><h3> <h2>课程推荐：</h2> <ul> <li><a href="/sw/howto/index.html" title="Kifaa cha CodeW3C.com">Kifaa cha CodeW3C.com</a></li> </ul> </div> </div> <div id="maincontent"> <div class="idea"> <a href="/"><button>English</button></a> <a href="/zh/"><button>中文</button></a> <a href="/oldzh/"><button>繁體中文</button></a> <a 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href="/da/"><button>Dansk</button></a> <a href="/nl/"><button>Nederlands</button></a> <a href="/tr/"><button>Türkçe</button></a> <a href="/fi/"><button>suom.</button></a> <a href="/el/"><button>Ελληνικά</button></a> <a href="/fa/"><button>فارسی</button></a> <a href="/sw/"><button>Kiswahili</button></a> <a href="/te/"><button>తెలుగు</button></a> <a href="/tl/"><button>wikang Galu</button></a> </div> <h1>KeyboardEvent keyCode 属性</h1> <div class="btn-toref"> <a href="/sw/jsref/dom_obj_event.html" title="Inayofanana na HTML DOM Events">Matukio ya DOM</a> <a href="/sw/jsref/obj_keyboardevent.html" title="Tukio wa KeyboardEvent wa HTML DOM">KeyboardEvent</a> </div> <div> <h2>定义和用法</h2> <p>keyCode 属性返回触发 <a href="/sw/jsref/event_onkeypress.html" title="Tukio la onkeypress">Tukio la onkeypress</a> 的按键的 Unicode 字符代码，或触发 <a href="/sw/jsref/event_onkeydown.html" title="Tukio la onkeydown">onkeydown</a> au <a href="/sw/jsref/event_onkeyup.html" title="Tukio la onkeyup">Tukio la onkeyup</a> 的按键的 Unicode 按键代码。</p> <p>Muungano wa aina mbili za kipimo</p> <ul> <li>Kipimo cha kifaa - Inayowakilisha namba za kifaa cha ASCII</li> <li>按键代码 - 代表键盘上实际键的数字</li> </ul> <p>这些类型并不总是意味着同样的事情。例如，小写 "w" 和大写 "W" 的键盘代码相同，因为在键盘上按下的键是相同的（"W" = 数字 "87"），但字符代码不同，因为 resulting 字符是不同的（"w" 或 "W"，即 "119" 或 "87"）- 请查看下面的更多实例，可以对这一点有更好的理解。</p> <p class="tip"><span>Msaada:</span>Kama inatakiwa kuzingatia kina ya bili kilichopigwa kwa herufi inayopewa (kama "a" au "5"), inaruhusiwa kwa matukio ya onkeypress. Kama inatakiwa kuzingatia kina ya bili kilichopigwa kwa herufi inayopewa (kama "F1", "CAPS LOCK" au "Home"), tumia matukio ya onkeydown au onkeyup.</p> <p class="note"><span>Mwongozo:</span>Kwa Firefox, kina ya keyCode haikufaa kwa matukio ya onkeypress (inaonyesha 0 pekee). Kwa msingi wa mawasiliano kuu, tuma: <a href="/sw/jsref/event_key_which.html" title="Jicho la which katika Tukio wa KeyboardEvent">which property</a>Kama inatakiwa kuitumia keyCode kwa mawasiliano, mengineu:</p> <pre>var x = event.which || event.keyCode; // Kama inatakiwa kuitumia which au keyCode, kuthuthua kwa mawasiliano</pre> <p class="tip"><span>Msaada:</span>Kwa orodha ya barua ya Unicode zote, tazama: <a href="/sw/charsets/ref_html_utf8.html" title="Makala ya Unicode (UTF-8) ya HTML">Complete Unicode Reference</a>.</p> <p class="tip"><span>Msaada:</span>Iwapo unataka kuwa na thamani ya Unicode kwa herufi, tumia: <a href="/sw/jsref/jsref_fromcharcode.html" title="String.fromCharCode() ya JavaScript">fromCharCode() method</a>.</p> <p class="note"><span>Mwongozo:</span>Mafanikio hauwezi kufichwa.</p> <p class="note"><span>Mwongozo:</span>Kina ya keyCode na which inatumika kwa heshima. Mwaka wa uwanja wa DOM wa jana kina ya key inatumika kwa heshima (kama inabaki).</p> <p class="tip"><span>Msaada:</span>Iwapo unafikia kuzingatia ikiwa kina ya "ALT", "CTRL", "META" au "SHIFT" kilichopigwa kuzingatia kwa kuzingatia kifo cha kina cha bili, tumia: <a href="/sw/jsref/event_key_altkey.html" title="Jicho la altKey katika Tukio wa KeyboardEvent">altKey</a>,<a href="/sw/jsref/event_key_ctrlkey.html" title="Jicho la ctrlKey katika Tukio wa KeyboardEvent">ctrlKey</a>/,<a href="/sw/jsref/event_key_metakey.html" title="Jicho la metaKey katika Tukio wa KeyboardEvent">metaKey</a> au <a href="/sw/jsref/event_key_shiftkey.html" title="Jicho la shiftKey katika Tukio wa KeyboardEvent">shiftKey</a> Mafanikio.</p> </div> <div> <h2>Mfano</h2> <h3>Mfano 1</h3> <p>Pata thamani ya Unicode ya kifungu cha bili kilichopigwa kuzingatia:</p> <pre class="language-js"> var x = event.keyCode; </pre> <p class="tiy"><a target="_blank" href="/sw/tiy/t.html?f=event_key_keycode_1">Tukio lake la kufanya</a></p> <h3>Mfano 2</h3> <p>Tumia onkeypress na onkeydown kwa kumonisha kati ya kina ya herufi na kina ya kifungu cha bili:</p> <pre class="language-js"> <input type="text" onkeypress="uniCharCode(event)" onkeydown="uniKeyCode(event)"> function uniCharCode(event) { var char = event.which || event.keyCode; document.getElementById("demo").innerHTML = "Kiwango cha HERUFI cha Unicode: " + char; } function uniKeyCode(event) { var key = event.keyCode; document.getElementById("demo2").innerHTML = "Kiwango cha KEY cha Unicode: " + key; } </pre> <p>Kama unasajia herufi "a" kwenye kifaa cha kibali (haukutumika kwa kinalesha), matokeo ya char na key kimekuwa:</p> <pre> Kiwango cha HERUFI cha Unicode: 97 Kiwango cha KEY cha Unicode: 65 </pre> <p class="tiy"><a target="_blank" href="/sw/tiy/t.html?f=event_key_keycode_2">Tukio lake la kufanya</a></p> <h3>Mifano 3</h3> <p>Kama mtumiaji anasajia kiwango cha msingi, tunasikia ujumbe mwingine:</p> <pre class="language-js"> <input type="text" onkeydown="myFunction(event)"> function myFunction(event) { var x = event.keyCode; if (x == 27) { // 27 ni kiwango cha msingi alert ("Una dhamiza kiwango cha msingi!"); } } </pre> <p class="tiy"><a target="_blank" href="/sw/tiy/t.html?f=event_key_keycode_3">Tukio lake la kufanya</a></p> <h3>Mifano 4</h3> <p>Kuchukua thamani ya Unicode kwa herufi (hauweza kutumika kwa mifano ya kinalesha):</p> <pre class="language-js"> var x = event.keyCode; // Kupata thamani ya Unicode var y = String.fromCharCode(x); // Kuchukua thamani kwa herufi </pre> <p class="tiy"><a target="_blank" href="/sw/tiy/t.html?f=event_key_keycode_4">Tukio lake la kufanya</a></p> </div> <div> <h2>Makusanyiko</h2> <pre class="language-js"> <i>event</i>.keyCode </pre> </div> <div> <h2>Vifaa vya kidharaa</h2> <table class="definition-usage"> <tr> <th>Wiziwa wa matokeo:</th> <td>Wiziwa wa namba, inasema kiwango cha Unicode cha herufi au kiwango cha Unicode cha mazungumzo.</td> </tr> <tr> <th style="width: 25%;">Jina la DOM:</th> <td>Matukio ya DOM Level 2</td> </tr> </table> </div> <div> <h2>Mwongozo wa kinalesha</h2> <table class="browser-support"> <tr> <th class="bsTh">Mafanikio</th> <th class="bsChrome">Chrome</th> <th class="bsIE">IE</th> <th class="bsFirefox">Firefox</th> <th class="bsSafari">Safari</th> <th class="bsOpera">Opera</th> </tr> <tr> <td>keyCode</td> <td>Mwongozo</td> <td>Mwongozo</td> <td>Mwongozo</td> <td>Mwongozo</td> <td>Mwongozo</td> </tr> </table> </div> <div> <h2>Pakua ya hatua</h2> <p>Makala ya HTML DOM ya kiwango cha 2:<a href="/sw/jsref/event_key_key.html" title="Jicho la key katika Tukio wa KeyboardEvent">Jicho la key katika Tukio wa KeyboardEvent</a></p> <p>Makala ya HTML DOM ya kiwango cha 2:<a href="/sw/jsref/event_key_charcode.html" title="Jicho la charCode katika Tukio wa KeyboardEvent">Jicho la charCode katika Tukio wa KeyboardEvent</a></p> <p>Makala ya HTML DOM ya kiwango cha 2:<a href="/sw/jsref/event_key_which.html" title="Jicho la which katika Tukio wa KeyboardEvent">Jicho la which katika Tukio wa KeyboardEvent</a></p> </div> <div class="btn-toref"> <a href="/sw/jsref/dom_obj_event.html" title="Inayofanana na HTML DOM Events">Matukio ya DOM</a> <a href="/sw/jsref/obj_keyboardevent.html" title="Tukio wa KeyboardEvent wa HTML DOM">KeyboardEvent</a> </div><div style="background-color:#fcfdf8; 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