擅长:python、mysql、java
<p>试试这个,对我有用。你知道吗</p>
<pre class="lang-py prettyprint-override"><code>floatlist = fname.read().split(" ")
count = 0
finalstring = ""
for x in floatlist:
count += 1
if count == 4:
finalstring += x + "\n"
else:
finalstring += x + " "
</code></pre>
<p>输入:</p>
<pre><code>"1 2 3 4 5 6 7 8"
</code></pre>
<p>输出:</p>
<pre><code>"1 2 3 4
5 6 7 8"
</code></pre>
<p>如何写入文件:(在现有代码的末尾)</p>
<pre class="lang-py prettyprint-override"><code>fname.close()
fname = open("file.txt", "w")
fname.write(finalstring)
fname.close()
</code></pre>