问题
I have something like : print "\n","|",id,"|",var1,"|",var2,"|",var3,"|",var4,"|"
It prints with spaces for each variable.
| 1 | john | h | johnny | mba |
I want something like this :
|1|john|h|johnny|mba|
I have 20 variables that I have to print and I hate use sys.stdout.write(var) for each one of them. Thanks Pythonistas!
回答1:
Try using join:
print "\n"+'|'.join([id,var1,var2,var3,var4])
or if the variables aren't already strings:
print "\n"+'|'.join(map(str,[id,var1,var2,var3,var4]))
The benefit of this approach is that you don't have to build a long format string and it basically works unchanged for an arbitrary number of variables.
回答2:
For a variable number of values:
print '|%s|' % '|'.join(str(x) for x in [id, var1, var2, var3, var4])
回答3:
print "\n|%s|%s|%s|%s" % (id,var1,var2,var3,var4)
Take a look at String Formatting.
Edit: The other answers with join are better. Join expects strings.
回答4:
If you are using Python 2.6 or newer, use the new standard for formating string, the str.format method:
print "\n{0}|{1}|{2}|".format(id,var1,var2)
link text
来源：https://stackoverflow.com/questions/3249949/how-to-print-a-string-of-variables-without-spaces-in-python-minimal-coding