完整demo
<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <title>demo</title> <script src="https://cdn.bootcss.com/jquery/3.4.1/jquery.min.js"></script> </head> <body> <input type="text" id='i'> <script> function stripscript(s) { var pattern = new RegExp("[`~!@#$^&*()=|{}':;',\[\].<>/?~！@#￥……&*（）——|{}【】‘；：”“'。，、？]") var rs = ""; for (var i = 0; i < s.length; i++) { rs = rs + s.substr(i, 1).replace(pattern, ''); } return rs; } $('#i').bind('input propertychange',function(){ console.log($('#i').val()); var val = $('#i').val(); $('#i').val(stripscript(val)); }) </script> </body> </html>