只能输入正整数的正则表达式及常用的正则表达式

<input type='text' id='SYS_PAGE_JumpPage' name='SYS_PAGE_JumpPage' size='3' maxlength='5' onkeyup='this.value=this.value.replace(/[^1-9]/D*$/,)' ondragenter=return false onpaste=return !clipboardData.getData('text').match(//D/) style=ime-mode:disabled;> 1.只能输入数字和英文的: <input onkeyup=value=