//只能輸入數字
οnkeyup='this.value=this.value.replace(/\D/g, '')'
{"type":"doc","content":[{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"typ
{"type":"doc","content":[{"type":"heading","attrs":{"align":"center","level":2},"content":[{"type":"text","text":"堅持原創輸出
{"type":"doc","content":[{"type":"heading","attrs":{"align":null,"level":2},"content":[{"type":"text","text":"前言"}]},{"t
不容錯過的 11 項 HTML/JS/CSS 技巧。 通過以下 HTML/CSS/JavaScript 相關技巧，希望能幫助大家填補一點點關於前端開發方面的知識空白。1.Datalist元素這項 HTML 元素的使用頻率極低，今天我們就要
{"type":"doc","content":[{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"blockq
{"type":"doc","content":[{"type":"blockquote","content":[{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null
近日，微軟宣佈將於今年 12 月終止對 Adobe Flash Player 的支持，屆時，微軟旗下所有瀏覽器都將無法使用 Flash，Adobe 也不會在今年 12 月後發佈安全更新。早在 2017 年，Adobe、Apple、Face
{"type":"doc","content":[{"type":"heading","attrs":{"align":null,"level":1},"content":[{"type":"text","text":"前言"}]},{"t
canvas簡介 canvas標籤是用來繪製圖像的 canvas本身沒有繪畫的能力，僅僅是圖形的容器，相當於一塊畫板 必須要使用腳本完成繪製：JS canvas繪畫 <!DOCTYPE html> <html lang="
<!doctype html> <html> <head></head> <body> <canvas width="500" height="800" style="background:yellow" id="canvas"
<!doctype html> <html> <head></head> <body> <canvas id="clock" width="500" height="500"> 您的瀏覽器不支持canvas標籤，無法看到時鐘
<!doctype html> <html> <head></head> <body> <form action="http://localhost/test.php" method="post" id="register"></
<!doctype html> <html> <head></head> <body> <!--<video src="movie.webm" controls="controls"> 您的破瀏覽器都是古董早該換了，不然休想
通過編寫javaScript瞭解瀏覽器是否支持HTML5與第一次編寫HTML5 的Hello world程序 //觸發標準模式 <!DOCTYPE html> <html> <head> //charset=gb2312 字符
實例： 我們經常會看到類似這樣的代碼： [html] view plain copy <!DOCTYPE html> <html> <head> <title>文檔的標題</title> </he
