擅长:python、mysql、java
<p>你可以试试:</p>
<pre><code>input_char = ""
conv = ''.maketrans({c: input_char for c in unwanted})
l = list() # if you want a list of all your strings
for i in range(len(flat_data2)):
mainString = flat_data2[i].translate(conv)
l.append(mainString)
</code></pre>