Re: [問題] 請教如何只用x,y兩變數來交換彼此數值
int a, b;
a= 123; b= 456;
a^= b^= a^= b;
// 只要 一行指令,不需要使用第三個變數,
即可達到 目的。
請問:為什麼?
※ 引述《ballgi (環給一個幸福)》之銘言:
: 不好意思,我想請教一個問題
: x=1
: y=2
: 如果不用第三個變數就能轉換彼此的數值為
: x=2
: y=1
: 我不知道可以這樣作耶,請問誰能指導我,謝謝
: 在此感謝鄉民提供的智慧
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