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String[] args = new String[]{sql.toString()}

SQL 
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本题中 StringBuffer sql = new StringBuffer();

其中sql.toString结果为： '测试用户1','男'

String[] args = new String[]{sql.toString()}

args.length结果为1

显然不是我们需要的。

注意：new String[]{"","",""}:这种形式的才正确。

 

 

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