100²-99²+98²²-97²+…+2²-1
=（100^2-99^2)+(98^2-97^2)+...+(2^2-1^2)
=100+99+98+87+...+2+1
=100x(100+1)/2
=5050
计算100²-99²+98²²-97²+…+2²-1
计算100²-99²+98²²-97²+…+2²-1
数学人气：453 ℃时间：2020-01-25 06:42:24
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