java保留小数--四舍五入--想保留几位就几位 String.format("%.nf",d);----表示保留N位!!!format("%.nf",double) package dynamatic; public class Test{ public static void main(String[] args) { double d = 3.1415926; String result1 = String.format("%.2f", d
1 exec sp_executesql N'SELECT 2 [Extent2].[Id] AS [Id], 3 [Extent2].[Name] AS [Name], 4 [Extent2].[Description] AS [Description], 5 [Extent2].[RoleTypeNum] AS [RoleTypeNum], 6 [Extent2].[IsDeleted] AS [IsDeleted], 7 [Extent2].[AddDate] AS [AddDate],
using System; using System.Collections.Generic; using System.Linq; using System.Text; namespace ConsoleApplication1 { class Program { static void Main(string[] args) { #region 数字格式化 //货币 Format_C(); //十进制 Format_D(); //科学计算法 Format_E(); //常规 Format_G
在javascript.Jquery里面好像是没有String.format();这个函数的,所以我们在拼接字符串的时候就特别的辛苦,生怕又打错,而且又乱,所以就自己去写一个函数来代替. String.format = function() { if (arguments.length == 0) return null; var str = arguments[0]; for ( var i = 1; i < arguments.length; i++) { var re = new RegE
String.prototype.format = function(args) { var result = this; if (arguments.length > 0) { if (arguments.length == 1 && typeof (args) == "object") { for (var key in args) { if (args[key] != undefined) { var reg = new RegExp("({&qu
第一种方法: String.format = function() { if (arguments.length == 0) return null; var str = arguments[0]; for ( var i = 1; i < arguments.length; i++) { var re = new RegExp('\\{' + (i - 1) + '\\}', 'gm'); str = str.replace(re, arguments[i]); } return str; }
<script type='text/javascript'> String.format = function() { var s = arguments[0]; for (var i = 0; i < arguments.length - 1; i++) { var reg = new RegExp("\\{" + i + "\\}", "gm"); s = s.replace(reg, arguments[i + 1]);