如何每行将多个数组元素打印到文本文件 [英] How to print several array elements per line to text file

问题描述

我有一个一维数组，例如arr1 = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, ...]任意长度.

I have a 1D array e.g. arr1 = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, ...] of arbitrary length.

如何将其打印到文本文件中(整数/浮点数用空格分隔)，以便每7个元素打印在文本文件的同一行上?

How do I print this to a text file (with integers/floats separated by spaces) so that every 7 elements are printed on the same line in the text file?

所以我希望文本文件看起来像这样:

So I want the text file to look like this:

第1行:1 2 3 4 5 6 7

第2行:8 9 10 11 12 13 14

推荐答案

您可以执行以下操作:

liNums = xrange(1, 20)
x = 0
line = ""
for i in liNums:
    x+=1
    line += "%s " % i
    if not x%7:
        line += "\n"
#send line to output, here I will just print it
print line

每7个项目都会附加一个新行...输出看起来像这样:

here every 7 items a new line is appended... output looks like this:

1 2 3 4 5 6 7 
8 9 10 11 12 13 14 
15 16 17 18 19 

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