我正在将Table添加到reportlab画布，但是我的表的高度正在向上调整，与上面的元素重叠

Question

`
import reportlab.platypus
from reportlab.lib import colors
from reportlab.lib.pagesizes import letter
from reportlab.lib.units import mm, inch
from reportlab.platypus import Table, TableStyle

#function below is a constructor to get values for the parameters
# I have tried to position each elements manually

def page_builder(my_canvas, assitemno, assitemdesc, ready, shipment, table1record, noteorder, comment):
    width, height = letter
    my_canvas.drawString(40, 800, 'Assembly Item Number')
    my_canvas.drawString(40, 780, assitemno)
    my_canvas.drawString(360, 800, 'Assembly Item Description')
    my_canvas.drawString(360, 780, assitemdesc)
    my_canvas.drawString(40, 750, 'Ready')
    my_canvas.drawString(40, 730, ready)
    my_canvas.drawString(360, 750, 'Shipment')
    my_canvas.drawString(360, 730, shipment)
    my_canvas.drawString(40, 700, 'Notes')
    my_canvas.drawString(40, 670, noteorder)
    my_canvas.drawString(40, 640, 'Comments')
    my_canvas.drawString(40, 610, comment)

    datatable = buildtabledata(table1record)

    tblstyle = reportlab.platypus.TableStyle(
        [('INNERGRID', (0, 0), (-1, -1), 0.25, colors.darkslateblue), ('VALIGN', (0, 0), (-1, -1), 'TOP'),
         ('BOX', (0, 0), (-1, -1), 0.25, colors.black),
         ('GRID', (0, 0), (-1, -1), 0.01 * inch, (0, 0, 0,)), ])
    tblstyle1 = reportlab.platypus.TableStyle(
        [('FONT', (0, 0), (-1, -1), 'Courier', 12), ('TEXTCOLOR', (0, 0), (-1, 0), colors.darkgreen),
         ('FONT', (0, 0), (-1, 0), 'Courier', 14)])
    datatable.setStyle(tblstyle) 
    datatable.setStyle(tblstyle1)
    # please ignore the table style as I have tried to use 2 styles together, it somehow works
    datatable.wrapOn(my_canvas, 400, 250)
    # trying to wrap the table at designated position
    datatable.drawOn(my_canvas, 40, 420)

如果行数少于10，则表位置完美，但是如果它超过10或更多，则表将向上拉伸，并与drawString元素重叠。如果行数超过页面的限制，我希望表大部分向下向下移动。

    my_canvas.saveState()
    my_canvas.showPage()
    my_canvas.save()


def buildtabledata(table1record):
    data = [['{}'.format(x) for x in ['Description', 'Number', 'Qty']]]
    for record in table1record:
        recordtoappend = [record[1], record[2], record[3]]
        data.append(recordtoappend)

    return Table(data, repeatRows=1)`

非常感谢任何帮助。很抱歉输入密码。我真的是python和reportlab的新手。原谅我的无知。

Answer 1

当行超过页面限制时，仍在寻求帮助以将表拆分到另一个页面。谢谢。