C#表达式学习笔记
作者:互联网
案例一:
买西瓜
*超市西瓜价格是1.9元/斤
*老婆下班买了6斤西瓜
*此时正逢双十一,超市购买商品满10元优惠7.5折
*问此时老婆买西瓜花了多少钱
看代码:
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
namespace WindowsFormsApp1
{
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
}
private void Form1_Load(object sender, EventArgs e)
{
double price = 1.9;//单价;
int count = 6;//数量;
double discount = 0.75;//折扣;
double sum;//存放总的价钱;
//计算折前价;
sum = price * count;
//判断折前价是否大于折扣价10元;
if (sum > 10)
{
//超过10元打折;
sum = sum * discount;//打折存放折后价(复合赋值);
}
MessageBox.Show(sum.ToString());//信息栏显示价钱;
}
}
}
计算结果
标签:10,C#,double,sum,System,笔记,Form1,using,表达式 来源: https://www.cnblogs.com/BlogRigisteraspx/p/15977666.html