JAVA-BufferedWriter写入文件没有内容，尝试flush（）和close（）也没效果
public class BufferReader {
public static void main(String[] args) {
BufferedWriter bw=null;
BufferedReader br=null;
try {
bw=new BufferedWriter(new FileWriter(“G:\datetest715\715.txt”));
br=new BufferedReader(new FileReader(“G:\datetest715\715.txt”));
bw.write(“1234567\r\n”);
bw.flush();
bw.write(“321”);
bw.flush();
String str=null;
while((str=br.readLine())!=null) {
System.out.println(str);
}
br.close();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
最后发现是文件路径有问题
改成
bw=new BufferedWriter(new FileWriter(“G:\datetest715/715.txt”));
br=new BufferedReader(new FileReader(“G:\datetest715/715.txt”));
成功！原来是斜杠的问题。
本文地址：https://blog.csdn.net/weixin_43580640/article/details/107371808
