用正则表达式限制只能输入全角字符: οnkeyup="value="/value.replace(/["^uFF00-uFFFF]/g,'')" onbeforepaste="clipboardData.setData('text',clipboardData.getData('text').replace(/[^uFF00-uFFFF]/g,''))" 用正则表达式限制只能输入数字:οnkeyup="value="/value.replace(/["^d]/g,'') "onbefo...