使用Disabled属性禁用元素。该属性可用于以下元素：<button>，<input>，<select>，<textarea>等。
您可以尝试运行以下代码以实现禁用的属性-
<!DOCTYPE html> <html> <body> <p>Which sports do you like?</p> <form action = "" method = "get"> <input type = "checkbox" name = "vehicle" value = "football" checked> Football<br> <input type = "checkbox" name = "vehicle" value = "cricket" checked> Cricket<br> <input type = "checkbox" name = "vehicle" value = "hockey"> Hockey<br> <input type = "submit" value = "Submit" disabled> </form> </body> </html>