单选题
发布日期:2021-05-14
OutputStream out= new FileOutputStream (“file.txt”); Out.writeBytes (“ /n”);
OutputStream os= new FileOutputStream (“file.txt”, true); DataOutputStream out = new DataOutputStream(os); out.writeBytes (“ /n”);
OutputStream os= new FileOutputStream (“file.txt”); DataOutputStream out = new DataOutputStream(os); out.writeBytes (“ /n”);
OutputStream os= new OutputStream (“file.txt”, true); DataOutputStream out = new DataOutputStream(os); out.writeBytes (“ /n”);
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