For i = 1 To 4 x = 4 For j = 1 To 3 x = 3 For k = 1 To 2 x = x + 6 Next k Next j Next i X=15?为什么
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![For i = 1 To 4 x = 4 For j = 1 To 3 x = 3 For k = 1 To 2 x = x + 6 Next k Next j Next i X=15?为什么](/uploads/image/z/7630133-5-3.jpg?t=For+i+%3D+1+To+4+x+%3D+4+For+j+%3D+1+To+3+x+%3D+3+For+k+%3D+1+To+2+x+%3D+x+%2B+6+Next+k+Next+j+Next+i+X%3D15%3F%E4%B8%BA%E4%BB%80%E4%B9%88)
For i = 1 To 4 x = 4 For j = 1 To 3 x = 3 For k = 1 To 2 x = x + 6 Next k Next j Next i X=15?为什么
For i = 1 To 4 x = 4 For j = 1 To 3 x = 3 For k = 1 To 2 x = x + 6 Next k Next j Next i X=15?为什么
For i = 1 To 4 x = 4 For j = 1 To 3 x = 3 For k = 1 To 2 x = x + 6 Next k Next j Next i X=15?为什么
不要看最外层的循环
for i=1 to 4 当I=4时 x也是等于3
for j=1 to 3 当J=3时 x也是等于3
所以真正的循环为 for k=1 to 2
循环2次,第一次,x初值是3,执行x=x+6后x=9 第二次,x值是9,执行x=x+6后x=15也就是最后的结果