/*** 转大写中文*/
function f_DX(n) {/*  if (!/^(0|[1-9]\d*)(\.\d+)?$/.test(n))return "数据非法"; */if (!/^(0|\-*[1-9]\d*)(\.\d+)?$/.test(n)) return "数据非法";var fuhao = (n.toString().indexOf("-")==0?"负":"");var unit = "千百拾亿千百拾万千百拾元角分", str = "";n += "00";//如果是负数就就截取if(fuhao == "负"){n = n.substring(1, n.length);}var p = n.indexOf('.');if (p >= 0)n = n.substring(0, p) + n.substr(p+1, 2);unit = unit.substr(unit.length - n.length);for (var i=0; i < n.length; i++)str += '零壹贰叁肆伍陆柒捌玖'.charAt(n.charAt(i)) + unit.charAt(i);return fuhao+str.replace(/零(千|百|拾|角)/g, "零").replace(/(零)+/g, "零").replace(/零(万|亿|元)/g, "$1").replace(/(亿)万|壹(拾)/g, "$1$2").replace(/^元零?|零分/g, "").replace(/元$/g, "元整");
}