X= 0 Y=4 DO until y >4 x=x*y y=y+1 LOOP PRINT X
X=2 Y=4 Do x=x*y y=y+1 Loop While y
x=1 y=2 do x=x*y y=y+1 loop while y
input x input y print x/2 print 3*y x=x+1 y=y-1 print x prin
>>> x =input("x:") x:34 >>> y =input("y:") y:42 >>> print x
x=1 do print x.x=x*2 loop until x>20 print x 输出结果 VB
X=5 y=-20 If not x>0 then x=y-3 else y=x+3 print x-y;y-x end
x=5 y=-20 IFx<0 THEN x=y-3 ELSE y=y+3 END IF PRINT x-y;y-x E
{3(x+y)-4(x-y)=4 {x+y/2 + x-y/6=1
{3(x+y)+3(y+x)=1,3(x+y)+4(y-x)=-1
{4/(x+y)+6/(x-y)=3 {9/(x-y)-1/(x+y)=1
已知4x=9y求(1)x+y/y (2)y-x/2x
若|x+2y-1|+y²+4y+4=0,求(2x-y)²-2(2x-y)(x+2y)+(x+2y)&