优化非税计算精度丢失问题

WebRoot/WEB-INF/pages/fstzs/Fstzs_Add.jsp

@@ -386,6 +386,43 @@
 
 		})
 
+		function accDiv(arg1, arg2) {
+			var t1 = 0,
+					t2 = 0,
+					r1, r2;
+			try {
+				t1 = arg1.toString().split(".")[1].length
+			} catch (e) { }
+			try {
+				t2 = arg2.toString().split(".")[1].length
+			} catch (e) { }
+			with (Math) {
+				r1 = Number(arg1.toString().replace(".", ""))
+				r2 = Number(arg2.toString().replace(".", ""))
+				return accMul((r1 / r2), pow(10, t2 - t1));
+			}
+		}
+		function accMul(arg1, arg2) {
+			var m = 0,
+					s1 = arg1.toString(),
+					s2 = arg2.toString();
+			try {
+				m += s1.split(".")[1].length
+			} catch (e) { }
+			try {
+				m += s2.split(".")[1].length
+			} catch (e) { }
+			return Number(s1.replace(".", "")) * Number(s2.replace(".", "")) / Math.pow(10, m)
+		}
+
+		function accAdd(arg1, arg2) {
+			var r1, r2, m;
+			try { r1 = arg1.toString().split(".")[1].length } catch (e) { r1 = 0 }
+			try { r2 = arg2.toString().split(".")[1].length } catch (e) { r2 = 0 }
+			m = Math.pow(10, Math.max(r1, r2))
+			return (arg1 * m + arg2 * m) / m
+		}
+
 		//输入框失去焦点 计算金额总和
 		$(document).on('blur', '.db-money', function () {
 			numb = Number($(this).val())
@@ -397,10 +434,10 @@
 				$.messager.alert('提示', '请输入正确的数字!');
 			} else {
 				//计算应缴面积
-				var yjmjNums = numb / 150
+				var yjmjNums = accDiv(numb,150)
 				var arr = String(yjmjNums).split('.');
 				if(arr.length > 1) {
-					if(arr[1].length > 10) {
+					if(arr[1].length > 20) {
 						$.messager.alert('提示', '请输入正确的应缴金额!');
 						$(this).parent().prev().text('');
 						return false;