计算1+2+3+…+100正确算法的伪代码是？A:sum=0n=1while n＜100 do sum=sum+n n=n+1end doprint sum B:sum=0n=1while n≤100 do sum=sum+n n=n+1end doprint sum C:sum=0n=1while n≤100 do sum=sum+1 n=n+1end doprint sum D:sum=0n=1while n＜100 do sum=sum+1 n=n+1end doprint sum 答案: sum=0n=1while n≤100 do sum=sum+n n=n+1end doprint sum