设x=1−1+1−1+1−1+1−1...x=1-1+1-1+1-1+1-1...x=1−1+1−1+1−1+1−1...
则x=1−(1−1)−(1−1)−...x=1-(1-1)-(1-1)-...x=1−(1−1)−(1−1)−...
x=1−0−0−0...x=1-0-0-0...x=1−0−0−0...
x=1x=1x=1
但 xxx 又可以等于(1−1)+(1−1)+(1−1)+...(1-1)+(1-1)+(1-1)+...(1−1)+(1−1)+(1−1)+...
则x=0+0+0+...x=0+0+0+...x=0+0+0+...
x=0x=0x=0
So. 1=01=01=0
