擅长:python、mysql、java
<p>这很管用</p>
<pre><code>import pandas as pd
df= pd.DataFrame({"prod_no": [1,2,3], "PROD": [ "PRODA", "PRODB", "PRODC" ]})
df["out"] = df.apply(lambda x: "@ITEM={}=={}".format(x["prod_no"], x["PROD"]), axis=1)
print(df)
</code></pre>
<p><strong>输出:</strong></p>
<pre><code> PROD prod_no out
0 PRODA 1 @ITEM=1==PRODA
1 PRODB 2 @ITEM=2==PRODB
2 PRODC 3 @ITEM=3==PRODC
</code></pre>