代码没有任何问题啊?你测试看看
import java.io.File;
import java.io.PrintWriter;
class T {
public static void main(String args[]) throws Exception {
PrintWriter pw = null;
try {
File file = new File("c:\\6.txt");
pw = new PrintWriter(file);
pw.println("destroy");
} catch (Exception e) {
e.printStackTrace();
}
pw.close();
}
}
追问并发时候怎么控制呢
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