Posted in Javascript onMay 14, 2010
//-------------------------------------------- // 删除千分点。 //-------------------------------------------- function removeComma(number) { var num = number.replace(new RegExp(",","g"),""); if(/^[-+]?[0-9]+(\.[0-9]+)?$/.test(num)) { return num; } else { return number; } } //-------------------------------------------- //添加千分点。 //-------------------------------------------- function addKannma(number) { var num = number.replace(new RegExp(",","g"),""); // 正负号处理 var symble = ""; if(/^([-+]).*$/.test(num)) { symble = num.replace(/^([-+]).*$/,"$1"); num = num.replace(/^([-+])(.*)$/,"$2"); } if(/^[0-9]+(\.[0-9]+)?$/.test(num)) { var num = num.replace(new RegExp("^[0]+","g"),""); if(/^\./.test(num)) { num = "0" + num; } var decimal = num.replace(/^[0-9]+(\.[0-9]+)?$/,"$1"); var integer= num.replace(/^([0-9]+)(\.[0-9]+)?$/,"$1"); var re=/(\d+)(\d{3})/ while(re.test(integer)){ integer =integer.replace(re,"$1,$2") } return symble + integer + decimal; } else { return number; } }
js 数值项目的格式化函数代码
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