∵|a-3|≥0,(b+1)2≥0,且|a-3|+(b+1)2=0,∴a-3=0且b+1=0,解得:a=3,b=-1.由题意得: 2b?a+m 2 = 1 2 b?a+m+1,即: ?5+m 2 =? 1 2 ?3+m+1, m?5 2 =m? 5 2 ,解得:m=0,∴m的值为0.