Python Reportlab多行

Question

我正在尝试将我的磁盘状态写成pdf。问题是，它不能写多行:每个字母的文本垂直。

import subprocess
from reportlab.pdfgen import canvas

p = subprocess.Popen('df -h', stdout=subprocess.PIPE, shell=True)
(disk, err) = p.communicate()
print disk

def hello(disk):
            height= 700
            c = canvas.Canvas("diskreport.pdf")
            c.drawString(200,800,"Diskreport")
            for line in disk:
                    c.drawString(100,height,line.strip()) 
                    height = height - 25
            c.showPage()
            c.save()
hello(disk)

Answer 1

您不是遍历数据中的行，而是遍历字符。例如：

>>> data="""a
... b
... line 3"""
>>> # this will print each character (as in your code)
... for line in data: print line
... 
a


b


l
i
n
e

3
>>> 
>>> # split into lines instead
... for line in data.split('\n'): print line
... 
a
b
line 3
>>>

因此，在您的代码中添加了.split('\n') to yourfor``-循环来生成以下内容：

for line in disk.split('\n'):