这里打不出来,就是一个黑色的矩形,大家遇到过没?
为什么会这样?
我是这样修改的 public void ModifyFile(String filePath) throws IOException
{
String s1;
String fileContent=new String();
BufferedReader in=new BufferedReader(new FileReader(filePath));
while((s1=in.readLine())!=null)
{
fileContent+=s1+"\n";
}
in.close();
fileContent=fileContent.replaceAll(str1,str2);
BufferedWriter out = new BufferedWriter( new OutputStreamWriter( new FileOutputStream( filePath ) ) );
out.write( fileContent, 0, fileContent.length( ) );
out.close( );
}怎么解决这个问题?
为什么会这样?
我是这样修改的 public void ModifyFile(String filePath) throws IOException
{
String s1;
String fileContent=new String();
BufferedReader in=new BufferedReader(new FileReader(filePath));
while((s1=in.readLine())!=null)
{
fileContent+=s1+"\n";
}
in.close();
fileContent=fileContent.replaceAll(str1,str2);
BufferedWriter out = new BufferedWriter( new OutputStreamWriter( new FileOutputStream( filePath ) ) );
out.write( fileContent, 0, fileContent.length( ) );
out.close( );
}怎么解决这个问题?
fileContent+=s1+"\r\n";