擅长:python、mysql、java
<p>因为replace返回修改后的字符串,所以需要分配它。原作原封不动。我想你需要:</p>
<pre><code>with open("diagnosis.data", "r") as fString, open("diagnosis1.txt", "w") as fBool:
for line in fString:
nline = line.replace("no", "0")
nline = nline.replace("yes", "1")
fBool.write(nline)
</code></pre>