打印购物小票可以通过多种编程语言和方法实现。以下是几种常见的方法:
1. 使用C和Windows Forms
```csharp
using System;
using System.Data;
using System.Windows.Forms;
namespace ShoppingReceiptPrinter
{
public partial class Form1 : Form
{
private DataGridView dataGridView1;
private TextBox textBox3;
public Form1()
{
InitializeComponent();
}
private void jzPrint()
{
if (dataGridView1.Rows.Count == 0)
{
MessageBox.Show("没有购物数据,无法收银和打印!");
return;
}
if (textBox3.Text.Trim() == "")
{
MessageBox.Show("没有输入付款金额,无法收银打印!");
return;
}
string operuser = "露天其"; // 收银员的名称,实际修改时,应该成登录者的名字即可
// 第一步,首先把这项订单写入数据库的表中
string day = DateTime.Now.ToString("yyyyMMdd");
string time = DateTime.Now.ToString();
// 第三步,进行打印
PrintDocument printDoc = new PrintDocument();
printDoc.PrintPage += new PrintPageEventHandler(printDoc_PrintPage);
printDoc.Print();
}
private void printDoc_PrintPage(object sender, PrintPageEventArgs e)
{
e.Graphics.DrawString("收银员: " + operuser, this.Font, Brushes.Black, 10, 10);
e.Graphics.DrawString("日期: " + day, this.Font, Brushes.Black, 10, 30);
e.Graphics.DrawString("时间: " + time, this.Font, Brushes.Black, 10, 50);
foreach (DataGridViewRow row in dataGridView1.Rows)
{
e.Graphics.DrawString(row.Cells.Value.ToString() + ":", this.Font, Brushes.Black, 10, 70 + row.Index * 20);
e.Graphics.DrawString(row.Cells.Value.ToString(), this.Font, Brushes.Black, 100, 70 + row.Index * 20);
e.Graphics.DrawString(row.Cells.Value.ToString(), this.Font, Brushes.Black, 150, 70 + row.Index * 20);
e.Graphics.DrawString(row.Cells.Value.ToString(), this.Font, Brushes.Black, 200, 70 + row.Index * 20);
}
e.Graphics.DrawString("合计: " + textBox3.Text, this.Font, Brushes.Black, 10, 400);
}
}
}
```
2. 使用Python