java中printf、println、print的区别
1、System.out.printf("%d", 1)

2、System.out.println(1)
System.out.println(1)

3、System.out.print(1)
System.out.print(1)

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1、System.out.printf("%d", 1)

2、System.out.println(1)
System.out.println(1)

3、System.out.print(1)
System.out.print(1)
