<p>给出以下示例,如何从具有以下内容的文件中删除所有“a”字符:</p>
<pre><code>asdasdasd \n d1233sss \n aaa \n 123
</code></pre>
<p>我编写了以下解决方案,但不起作用:</p>
<pre><code>with open("testfisier","r+") as file:
for line in file:
for index in range(len(line)):
if line[index] is "a":line[index].replace("a","")
</code></pre>