已知｜x-0.5｜+(2y-1)^2=0.求x^2+y^2=＿分析：此题考查非负数的性质：几个非负数的和为0,那么这几个非负数也为0.∵｜x-0.5｜≥0,(2y-1)^2≥0且｜x-0.5｜+(2y-1)^2=0∴｜x-0.5｜=0,(2y-1)^2=0∴x-0.5=0,2y-1=0解得x=0...