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请教如何找最小的变量,而不是最小的值是多少

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WBOYOriginal
2016-06-13 12:35:08724browse

请问怎么找最小的变量,而不是最小的值是多少
请问怎么找最小的变量,而不是最小的值是多少,最小值的位置也可以。

比如:
$a=1;
$b=2;
$c=3;

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