using System;
using System.Collections.Generic;
using System.Linq;
using System.Reflection.Emit;
using System.Text;
using System.Threading.Tasks;

namespace ConvertDemo
{
    internal class Program
    {
        static void Main(string[] args)
        {
            float a = 10.156f;
            string s = a.ToString("f1");//保留小数点后1位
            string s2 = a.ToString("f2");//保留小数点后2位
            Console.WriteLine(s);
            Console.WriteLine(s2);
        }
    }
}