java的printf的作用是什么
System.out.printf("%10s%10s | %10s%10s\n", "kilograms", "pounds", "pounds", "kilograms");
比如这句,怎么理解,如果不用编写这句对程序影响大吗
SniterWong
2015/08/23 14:17- java
- printf
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System.out.printf("%10s%10s | %10s%10s\n", "kilograms", "pounds", "pounds", "kilograms");
比如这句,怎么理解,如果不用编写这句对程序影响大吗