区别?(初学)
求1+2+3+* * * +100(A) Sum=0 (B)Sum=0 I=1
I=1 Do
Do While I<=100 Sum=Sum+I
Sum=Sum+I I=I+1
I=I+1 Loop While I<=100
Loop
Do While I<=100
Sum=Sum+I
I=I+1
Loop
I=1
Do While I<=100
Sum=Sum+I
I=I+1
Loop
初学（区别）
(A) Sum=0 (B)Sum=0 I=1 I=1 Do
Do While I<=100 Sum=Sum+I
Sum=Sum+I I=I+1
I=I+1 Loop While I<=100
Loop