java中\r,\n,\r\n,\n\r的区别,疑问?

刺骨的言语ヽ痛彻心扉 2023-07-17 07:00 30阅读 0赞

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package com.test;
    
    import java.io.IOException;
    import java.io.InputStream;
    
    public class Test {
    
    	//java中\r,\n,\r\n,\n\r的区别,疑问?
    	public static void main(String[] args) throws IOException{
    		System.out.print("1----->\r5678test");
    		System.out.print("2----->\n");
    		System.out.print("3----->\n\r");
    		System.out.print("4----->\r\n");
    		System.out.print("5----->");
    		System.out.print("yes");
    		System.out.print("hello\r\n666");
    		System.out.print("hi777");
    		System.out.print("ok\n\r88");
    		System.out.print("go1\n99");
    		System.out.print("go2\r55");
    		System.out.print("go3\r44");
    		System.out.print("go4\n33");
    		System.out.print("go5\n\r22");
    		System.out.print("go6");
    		System.out.print("aaa");
    		// \f是换页符
    		System.out.println("qwe\fabc");
    //		使用System.getProperty("line.separator")来获取当前OS的换行符
    		System.out.print(System.getProperty("line.separator"));
    		testCarriageReturnAndNewLine();
    	}
    	
    	public static void testCarriageReturnAndNewLine() throws IOException {
    		InputStream in = System.in;
    		StringBuilder sb = new StringBuilder();
    		int ch = 0;
    		while ((ch = in.read()) != -1) {
    			if (ch == '\r') {
    				System.out.println("\\r");
    			}
    			if (ch == '\n') {
    				System.out.println("\\n");
    			}
    			sb.append((char) ch);
    			System.out.println("数据有:" + sb.toString());
    			System.out.println("长度为:" + sb.length());
    		}
    	}
    }

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[20200320144502653.png]: /images/20230528/4effb0fcb0704a3396b8234874a98182.png