使用Python创建付款收据

创建付款收据是一项非常常见的任务，无论是电子商务网站还是任何本地商店。

在这里，我们将看到如何仅使用Python创建我们自己的交易收据。我们将使用reportlab生成 PDF。通常，它是一个内置包，但有时也可能不存在。如果它不存在，那么只需在终端中输入以下内容

安装：

pip install reportlab

方法：

• 导入模块。
• 我们需要列表形式的数据。外部索引的第 0 个索引是标题。
• 我们使用指定的纸张大小创建一个简单的文档模板（此处为 A4）
• 然后从内置样式表中获取示例样式表并相应地添加样式。
• 创建样式对象后，将数据和样式表输入 pdf 对象并构建它。

下面是实现：

Python3

# imports module
from reportlab.platypus import SimpleDocTemplate, Table, Paragraph, TableStyle
from reportlab.lib import colors
from reportlab.lib.pagesizes import A4
from reportlab.lib.styles import getSampleStyleSheet
 
# data which we are going to display as tables
DATA = [
    [ "Date" , "Name", "Subscription", "Price (Rs.)" ],
    [
        "16/11/2020",
        "Full Stack Development with React & Node JS - Live",
        "Lifetime",
        "10,999.00/-",
    ],
    [ "16/11/2020", "Geeks Classes: Live Session", "6 months", "9,999.00/-"],
    [ "Sub Total", "", "", "20,9998.00/-"],
    [ "Discount", "", "", "-3,000.00/-"],
    [ "Total", "", "", "17,998.00/-"],
]
 
# creating a Base Document Template of page size A4
pdf = SimpleDocTemplate( "receipt.pdf" , pagesize = A4 )
 
# standard stylesheet defined within reportlab itself
styles = getSampleStyleSheet()
 
# fetching the style of Top level heading (Heading1)
title_style = styles[ "Heading1" ]
 
# 0: left, 1: center, 2: right
title_style.alignment = 1
 
# creating the paragraph with
# the heading text and passing the styles of it
title = Paragraph( "GeeksforGeeks" , title_style )
 
# creates a Table Style object and in it,
# defines the styles row wise
# the tuples which look like coordinates
# are nothing but rows and columns
style = TableStyle(
    [
        ( "BOX" , ( 0, 0 ), ( -1, -1 ), 1 , colors.black ),
        ( "GRID" , ( 0, 0 ), ( 4 , 4 ), 1 , colors.black ),
        ( "BACKGROUND" , ( 0, 0 ), ( 3, 0 ), colors.gray ),
        ( "TEXTCOLOR" , ( 0, 0 ), ( -1, 0 ), colors.whitesmoke ),
        ( "ALIGN" , ( 0, 0 ), ( -1, -1 ), "CENTER" ),
        ( "BACKGROUND" , ( 0 , 1 ) , ( -1 , -1 ), colors.beige ),
    ]
)
 
# creates a table object and passes the style to it
table = Table( DATA , style = style )
 
# final step which builds the
# actual pdf putting together all the elements
pdf.build([ title , table ])

输出：

收据.pdf