請問這里面是怎么計算
?????? int one = 10 ;
??????? int two = 20 ;
??????? int three = 0 ;
three+=one;
?System.out.println("thrree+= ==> "+three);
為什么得出的結(jié)果是40,不應(yīng)該是10嗎?
死神少
2015-12-23
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2015-12-23
public?class?HelloWorld{ ????public?static?void?main(String[]?args)?{ ????int?one?=?10?; ????????int?two?=?20?; ????????int?three?=?0?; ????????three=one+two; ????????System.out.println("three=one+two?==>?"+three); ????????three+=one; ????????System.out.println("three+=?==>?"+three); ????????three-=one; ????????System.out.println("three-+"+three); ????????three*=one; ????????System.out.println("three*="+three); ????????three/=one; ????????System.out.println("three/="+three); ????????three%=one; ????????System.out.println("three%="+three);你好，three+=one; 這一句的意思是，three + one 賦值給 three，這里上面已經(jīng)運行過?three=one+two;?
所以到?three+=one; 這一步的時候 three 的值是 30；運行?three+=one; 后相當于 three = 30 + 10；
因此，得到的 three 的值是 40；望樓主采納！
2015-12-23
public?class?HelloWorld{ ????public?static?void?main(String[]?args)?{ ????int?one?=?10?; ????????int?two?=?20?; ????????int?three?=?0?; ????????three=one+two; ????????System.out.println("three=one+two?==>?"+three);?//30 ????????three+=one; ????????System.out.println("thrree+=?==>?"+three);??//40 ????????three-=one; ????????System.out.println("three-+"+three);????//30 ????????three*=one; ????????System.out.println("three*="+three);????//300 ????????three/=one; ????????System.out.println("three/="+three);????//30 ????????three%=one; ????????System.out.println("three%="+three);????//02015-12-23
哪里??？