我正在尝试添加间距以在两个字符串变量之间对齐文本，而不使用
" "尝试让文本看起来像这样，第二列对齐。
Location: 10-10-10-10 Revision: 1
District: Tower Date: May 16, 2012
User: LOD Time: 10:15
目前的编码是这样的，只是使用空格...
"Location: " + Location + " Revision: " + Revision + '\n'
我尝试与
string.rjustsrting.ljust建议？
你应该能够使用格式化方法：
"Location: {0:20} Revision {1}".format(Location, Revision)
您必须根据标签的长度计算出每行的格式长度。
UserLocationDistrict尝试使用
%*s%-*s>>> print "Location: %-*s Revision: %s" % (20,"10-10-10-10","1")
Location: 10-10-10-10 Revision: 1
>>> print "District: %-*s Date: %s" % (20,"Tower","May 16, 2012")
District: Tower Date: May 16, 2012
从 Python 3.6 开始，我们有一个更好的选择，f-strings！
print(f"{'Location: ' + location:<25} Revision: {revision}")
print(f"{'District: ' + district:<25} Date: {date}")
print(f"{'User: ' + user:<25} Time: {time}")
输出：
Location: 10-10-10-10 Revision: 1
District: Tower Date: May 16, 2012
User: LOD Time: 10:15
由于大括号内的所有内容都是在运行时评估的，因此我们可以输入与变量
'Location: 'location:<25<这里的另一个好处是您不必计算格式字符串中的字符数。使用 25 将适用于所有字符，前提是 25 足够长以包含左列中的所有字符。
https://realpython.com/python-f-strings/ 解释了 f-string 相对于以前选项的优势。 https://medium.com/@NirantK/best-of-python3-6-f-strings-41f9154983e 解释了如何使用 <, > 和 ^ 表示左对齐、右对齐和居中对齐。
您可以使用
expandtabsprint(('Location: ' + '10-10-10-10' + '\t' + 'Revision: 1').expandtabs(30))
print(('District: Tower' + '\t' + 'Date: May 16, 2012').expandtabs(30))
输出：
Location: 10-10-10-10 Revision: 1
District: Tower Date: May 16, 2012
@IronMensan 的格式方法答案是正确的方法。但为了回答你关于 ljust 的问题：
>>> def printit():
... print 'Location: 10-10-10-10'.ljust(40) + 'Revision: 1'
... print 'District: Tower'.ljust(40) + 'Date: May 16, 2012'
... print 'User: LOD'.ljust(40) + 'Time: 10:15'
...
>>> printit()
Location: 10-10-10-10 Revision: 1
District: Tower Date: May 16, 2012
User: LOD Time: 10:15
编辑注意此方法不需要您知道字符串有多长。 .format() 也可以，但我对它还不够熟悉。
>>> uname='LOD'
>>> 'User: {}'.format(uname).ljust(40) + 'Time: 10:15'
'User: LOD Time: 10:15'
>>> uname='Tiddlywinks'
>>> 'User: {}'.format(uname).ljust(40) + 'Time: 10:15'
'User: Tiddlywinks Time: 10:15'
复活另一个主题，但这可能对某些人有用。
借助 https://pyformat.info 的一点灵感，您可以构建一种方法来获取目录 [TOC] 样式的打印输出。
# Define parameters
Location = '10-10-10-10'
Revision = 1
District = 'Tower'
MyDate = 'May 16, 2012'
MyUser = 'LOD'
MyTime = '10:15'
# This is just one way to arrange the data
data = [
['Location: '+Location, 'Revision:'+str(Revision)],
['District: '+District, 'Date: '+MyDate],
['User: '+MyUser,'Time: '+MyTime]
]
# The 'Table of Content' [TOC] style print function
def print_table_line(key,val,space_char,val_loc):
# key: This would be the TOC item equivalent
# val: This would be the TOC page number equivalent
# space_char: This is the spacing character between key and val (often a dot for a TOC), must be >= 5
# val_loc: This is the location in the string where the first character of val would be located
val_loc = max(5,val_loc)
if (val_loc <= len(key)):
# if val_loc is within the space of key, truncate key and
cut_str = '{:.'+str(val_loc-4)+'}'
key = cut_str.format(key)+'...'+space_char
space_str = '{:'+space_char+'>'+str(val_loc-len(key)+len(str(val)))+'}'
print(key+space_str.format(str(val)))
# Examples
for d in data:
print_table_line(d[0],d[1],' ',30)
print('\n')
for d in data:
print_table_line(d[0],d[1],'_',25)
print('\n')
for d in data:
print_table_line(d[0],d[1],' ',20)
结果输出如下：
Location: 10-10-10-10 Revision:1
District: Tower Date: May 16, 2012
User: LOD Time: 10:15
Location: 10-10-10-10____Revision:1
District: Tower__________Date: May 16, 2012
User: LOD________________Time: 10:15
Location: 10-10-... Revision:1
District: Tower Date: May 16, 2012
User: LOD Time: 10:15
Python f 字符串
Python f-string 是用于字符串格式化的最新 Python 语法。 它从 Python 3.6 开始可用。 Python f-string 提供了更快、 更具可读性、更简洁且不易出错的格式化方式 Python 中的字符串。
请访问此处以获取有关字符串格式的详细讨论。
#!/usr/bin/env python3
#Location: 10-10-10-10 Revision: 1
#District: Tower Date: May 16, 2012
#User: LOD Time: 10:15
from datetime import datetime
location = "10-10-10-10"
revision = 1
district = "Tower"
now = datetime.now()
user = "LOD"
width = 30#the width of string
loc = f"Location: {location}"
print(f"{loc: <{width}} Revision: {revision}")
dist = f"District: {district}"
print(f"{dist : <{width}} Date: {now :%b %d, %Y}")
usr = f"User: {user}"
print(f"{usr : <{width}} Time: {now :%H:%M}")
Location: 10-10-10-10 Revision: 1
District: Tower Date: Mar 30, 2022
User: LOD Time: 12:29
有没有办法对间距不均匀的字体（例如 Arial Narrow）执行此操作？