自定義異常和小結
阿新 • • 發佈:2021-07-01
<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <meta http-equiv="X-UA-Compatible" content="ie=edge"> <title>Document</title> </head> <body> <button>獲取驗證碼</button> <script> vart var btn = document.querySelector('button') console.log(btn) btn.onclick = function () { btn.disabled = true btn.innerHTML = '10s倒計時' clearInterval(t) var count = 10 t = setInterval(function () { count-- btn.innerHTML = count + 's' if (count <= 0) { clearInterval(t) btn.disabled = false btn.innerHTML = '10s倒計時' } }, 1000) } </script> </body> </html>