如何在python中创建固定大小的格式化字符串？ [重复]

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这个问题在这里已有答案：

How to format print output or string into fixed width? 4 answers
如何将打印输出或字符串格式化为固定宽度？ 4个答案

I want to create a formatted string with fixed size with fixed position between fields. An example explains better, here there are clearly 3 distinct fields and the string is a fixed size:

我想创建一个固定大小的格式化字符串，字段之间的位置固定。一个例子更好地解释，这里有明显3个不同的字段，字符串是固定大小：

XXX        123   98.00
YYYYY        3    1.00
ZZ          42  123.34

How can I apply such formatting to a string in python (2.7)?

如何在python（2.7）中将这种格式应用于字符串？

1 个解决方案

#1

Sure, use the .format method. E.g.,

当然，使用.format方法。例如。，

print '{:10s} {:3d}  {:7.2f}'.format('xxx', 123, 98)
print '{:10s} {:3d}  {:7.2f}'.format('yyyy', 3, 1.0)
print '{:10s} {:3d}  {:7.2f}'.format('zz', 42, 123.34)

will print

将打印

xxx        123    98.00
yyyy         3     1.00
zz          42   123.34

You can adjust the field sizes as desired. Note that .format works independently of print to format a string. I just used print to display the strings. Brief explanation:

您可以根据需要调整字段大小。请注意，.format独立于print工作以格式化字符串。我只是用print来显示字符串。简要说明：

10s format a string with 10 spaces, left justified by default

10s格式化一个包含10个空格的字符串，默认情况下左对齐

3d format an integer reserving 3 spaces, right justified by default

3d格式一个保留3个空格的整数，默认情况下右对齐

7.2f format a float, reserving 7 spaces, 2 after the decimal point, right justfied by default.

7.2f格式化一个浮点数，保留7个空格，小数点后2，右边默认为右。

There are many additional options to position/format strings (padding, left/right justify etc), String Formatting Operations will provide more information.

还有许多其他选项来定位/格式化字符串（填充，左/右对齐等），字符串格式化操作将提供更多信息。

#1