JS 常见的数据操作方法
作者：互联网
//四舍五入
function round2(number, fractionDigits) {
with (Math) {
return round(number * pow(10, fractionDigits)) / pow(10, fractionDigits);
}
}
// 空替换0
function fun_FillStr(Str) {
Str = Str.replace(/(^\s*)|(\s*$)/g, "") == "" ? "0" : Str;
Str = Str.replace(/(^\s*)|(\s*$)/g, "") == "-" ? "0" : Str;
return Str;
}
//乘除法
function Fun_Interceptiont(arg1, arg2, type) {
var m = 0;
var s1 = "";
var s2 = "";
var s3 = "";
try {
s1 = arg1.toString();
} catch (e) {
}
try {
s2 = arg2.toString();
} catch (e) {
}
try {
s3 = arg3.toString();
} catch (e) {
}
try {
m += s1.split(".")[1].length;
}
catch (e) {
}
try {
m += s2.split(".")[1].length;
}
catch (e) {
}
if (type == 1) //除法
{
JSHJ = Number(s1.replace(".", "")) / Number(s2.replace(".", "")) / Math.pow(10, m);
}
else {
JSHJ = Number(s1.replace(".", "")) * Number(s2.replace(".", "")) / Math.pow(10, m);
}
}
//乘除法
function Fun_Interceptiont_GZ(arg1, arg2, arg3, type) {
var m = 0;
var s1 = "";
var s2 = "";
var s3 = "";
try {
s1 = arg1.toString();
} catch (e) {
}
try {
s2 = arg2.toString();
} catch (e) {
}
try {
s3 = arg3.toString();
} catch (e) {
}
try {
m += s1.split(".")[1].length;
}
catch (e) {
}
try {
m += s2.split(".")[1].length;
}
catch (e) {
}
if (type == 1) //除法
{
JSHJ = Number(s1.replace(".", "")) / Number(s2.replace(".", "")) / Math.pow(10, m);
}
else {
JSHJ = Number(s1.replace(".", "")) * Number(s2.replace(".", "")) * Number(s3) / Math.pow(10, m);
}
}
//加减法
function Fun_InterceptiontTotal(arg1, arg2, type) {
var r1, r2, m, n;
try {
r1 = arg1.toString().split('.')[1].length;
}
catch (e) {
r1 = 0;
}
try {
r2 = arg2.toString().split('.')[1].length;
}
catch (e) {
r2 = 0;
}
if (type == 1) //减法
{
m = Math.pow(10, Math.max(r1, r2));
n = (r1 >= r2) ? r1 : r2;
JSHJ = ((arg1 * m - arg2 * m) / m).toFixed(n);
}
else {
m = Math.pow(10, Math.max(r1, r2));
JSHJ = (arg1 * m + arg2 * m) / m;
}
}
//判断字符是否为空的方法
function isEmpty(obj) {
if (typeof obj == "undefined" || obj == null || obj == "" || obj == "NaN" || isNaN(obj)) {
return true;
} else {
return false;
}
}
//计算百分比
function GetPercent(num, total) {
num = parseFloat(num);
total = parseFloat(total);
if (isNaN(num) || isNaN(total)) {
return "-";
}
return total <= 0 ? "0%" : (Math.round(num / total * 10000) / 100.00 + "%");
}
//将小写转化成大写
function atoc(numberValue) {
var numberValue = new String(Math.round(numberValue * 100)); // 数字金额
var chineseValue = ""; // 转换后的汉字金额
var String1 = "零壹贰叁肆伍陆柒捌玖"; // 汉字数字
var String2 = "万仟佰拾亿仟佰拾万仟佰拾元角分"; // 对应单位
var len = numberValue.length; // numberValue 的字符串长度
var Ch1; // 数字的汉语读法
var Ch2; // 数字位的汉字读法
var nZero = 0; // 用来计算连续的零值的个数
var String3; // 指定位置的数值
if (len > 15) {
alert("超出计算范围");
return "";
}
if (numberValue == 0) {
chineseValue = "零元整";
return chineseValue;
}
String2 = String2.substr(String2.length - len, len); // 取出对应位数的STRING2的值
for (var i = 0; i < len; i++) {
String3 = parseInt(numberValue.substr(i, 1), 10); // 取出需转换的某一位的值
if (i != (len - 3) && i != (len - 7) && i != (len - 11) && i != (len - 15)) {
if (String3 == 0) {
Ch1 = "";
Ch2 = "";
nZero = nZero + 1;
}
else if (String3 != 0 && nZero != 0) {
Ch1 = "零" + String1.substr(String3, 1);
Ch2 = String2.substr(i, 1);
nZero = 0;
}
else {
Ch1 = String1.substr(String3, 1);
Ch2 = String2.substr(i, 1);
nZero = 0;
}
}
else { // 该位是万亿，亿，万，元位等关键位
if (String3 != 0 && nZero != 0) {
Ch1 = "零" + String1.substr(String3, 1);
Ch2 = String2.substr(i, 1);
nZero = 0;
}
else if (String3 != 0 && nZero == 0) {
Ch1 = String1.substr(String3, 1);
Ch2 = String2.substr(i, 1);
nZero = 0;
}
else if (String3 == 0 && nZero >= 3) {
Ch1 = "";
Ch2 = "";
nZero = nZero + 1;
}
else {
Ch1 = "";
Ch2 = String2.substr(i, 1);
nZero = nZero + 1;
}
if (i == (len - 11) || i == (len - 3)) { // 如果该位是亿位或元位，则必须写上
Ch2 = String2.substr(i, 1);
}
}
chineseValue = chineseValue + Ch1 + Ch2;
}
if (String3 == 0) { // 最后一位（分）为0时，加上“整”
chineseValue = chineseValue + "整";
}
return chineseValue;
}
标签：catch,操作方法,常见,nZero,JS,try,substr,var,String3 来源： https://www.cnblogs.com/yrhiwx/p/16669709.html