// ---------------------------------------------------------------------- // <summary> // 限制只能输入数字 // demo: $(".onlyNum").onlyNum(); 限制使用了onlyNum类样式的控件只能输入数字 // </summary> // ---------------------------------------------------------------------- $.fn.onlyNum = function () {     $(this).keypress(function (event) {         var eventObj = event || e;         var keyCode = eventObj.keyCode || eventObj.which;         if ((keyCode >= 48 && keyCode <= 57))             return true;         else             return false;     }).focus(function () {         //禁用输入法         this.style.imeMode = 'disabled';     }).bind("paste", function () {         //获取剪切板的内容         var clipboard = window.clipboardData.getData("Text");         if (/^\d+$/.test(clipboard))             return true;         else             return false;     }); };

// ---------------------------------------------------------------------- // <summary> // 限制只能输入字母 // demo:  $(".onlyAlpha").onlyAlpha(); 限制使用了onlyNumAlpha类样式的控件只能输入数字和字母 // </summary> // ---------------------------------------------------------------------- $.fn.onlyAlpha = function () {     $(this).keypress(function (event) {         var eventObj = event || e;         var keyCode = eventObj.keyCode || eventObj.which;         if ((keyCode >= 65 && keyCode <= 90) || (keyCode >= 97 && keyCode <= 122))             return true;         else             return false;     }).focus(function () {         this.style.imeMode = 'disabled';     }).bind("paste", function () {         var clipboard = window.clipboardData.getData("Text");         if (/^[a-zA-Z]+$/.test(clipboard))             return true;         else             return false;     }); };

// ---------------------------------------------------------------------- // <summary> // 限制只能输入数字和字母 // demo: $(".onlyNumAlpha").onlyNumAlpha(); 限制使用了onlyNumAlpha类样式的控件只能输入数字和字母 // </summary> // ---------------------------------------------------------------------- $.fn.onlyNumAlpha = function () {     $(this).keypress(function (event) {         var eventObj = event || e;         var keyCode = eventObj.keyCode || eventObj.which;         if ((keyCode >= 48 && keyCode <= 57) || (keyCode >= 65 && keyCode <= 90) || (keyCode >= 97 && keyCode <= 122))             return true;         else             return false;     }).focus(function () {         this.style.imeMode = 'disabled';     }).bind("paste", function () {         var clipboard = window.clipboardData.getData("Text");         if (/^(\d|[a-zA-Z])+$/.test(clipboard))             return true;         else             return false;     }); };