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ΪʲôMAth.ABs

ֵľֵ÷Math.abs(x:Number): xΪҪתֵ˷xľֵxΪ0ôͷǸضӦMath.abs(11.5)ķֵ11.5Math.abs(-11.5)ķֵ11.5Math.abs(0)ķ...

Math.abs()ȡֵ~ǰλǣλ򵥵ǸıķŲȥ1͵õ-2016Ȼȡֵõ2016

õһֵľֵʱáбȽֵĴСҪţֻܱȽֵĴСʱΪ˸ĸţñֵ

abs public static double abs(double a) double ֵľֵǷǸ򷵻ظòǸ򷵻ظò෴ǣ 㣬ô㡣 ô ...

math.abs(~2016) = 2017 ~ʾλȡ,math.absʾȡֵ. 102016,ת32λ2Ϊ:0000 0111 1110 0000 ~λȡ:1111 1000 0001 1111,Ӧʮ:-2017 Math.abs(-2017)=2017

ȷһľֵ磺math.Abs(-1),ص1math.Abs(1)صֵҲ1

ѧеľֵ

֪ñc/c++,math澲̬ûʵֱʹabs()ȡֵ e.g: a = -4 , b = 6 ȼ f(4, 6) fЩ߼ 󶮰ٶ

math.abs(~2016) = 2017 ~ʾλȡ,math.absʾȡֵ. 102016,ת32λ2Ϊ:0000 0111 1110 0000 ~λȡ:1111 1000 0001 1111,Ӧʮ:-2017 Math.abs(-2017)=2017

ֵMath.abs(1) Ϊ1 Math.abs(-1)Ҳ1ѧϵ ֵ 2aλüaĿȼȥ2bλúbĿ

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