2017-10-21 81 views
0

我正在写一个小程序,旨在绘制一个25像素的地方,无论在哪里,randrange会给它它的点。我还有4个红色盒子,充当炸弹或地雷。当该行的x,y通过getColor函数为红色时,var'color'将变为红色。因此停止while循环,这将停止继续。对于我在比赛场上绘制的蓝点,这也是相同的期望功能。我发现我的程序不能以这种方式运行。关于我如何解决这个问题的任何建议?虽然循环不正确停止,因为它应该

from random import * 
def main(): 
    #draw 
    pic = makeEmptyPicture(600, 600, white) 
    show(pic) 

    #for the 4 boxes 
    boxCount = 0 
    #while statement to draw 
    while boxCount < 4: 
     addRectFilled(pic, randrange(0,576), randrange(0,576), 25, 25, red) 
     addArcFilled(pic, randrange(0,576), randrange(0,576), 10, 10, 0, 360, blue) 
     boxCount = boxCount + 1 
    repaint(pic) 

    #vars for while statement 
    newX = 0 
    newY = 0 
    oldX = 0 
    oldY = 0 
    robotcount = 0 
    finished = 0 
    safe = 0 
    triggered = 0 
    #while loop, stops @ step 750, or when a px == red/blue 
    while robotcount < 750 or color == red or color == blue: 

     oldX = newX 
     oldY = newY 
     #how to generate a new line poing +25/-25 
     newX = newX + randrange(-25, 26) 
     newY = newY + randrange(-25, 26) 
     #if statements to ensure no x or y goes over 599 or under 0 
     if newX > 599 or newX < 0: 
      newX = 0 
     if newY > 599 or newY < 0: 
      newY = 0 
     #functions to get pixel color of x,y 
     px = getPixel(pic, newX, newY) 
     color = getColor(px) 
     #draw the line from old to new, and also add +1 count for robot's steps 
     addLine(pic, oldX, oldY, newX, newY, black) 
     robotcount = robotcount + 1 

    #if statement to determine why the while loop stops 
    if color == red: 
     triggered = 1 
     printNow("trig") 
    if color == blue: 
     safe = 1 
     printNow("safe") 
    if robotcount == 750: 
     finished = 1 
     printNow("Fin") 
+0

如何'red'和'blue'界定? – Iguananaut

+1

您是否尝试过自己调试此问题?我打赌一些printf调试可以做到这一点。 https://ericlippert.com/2014/03/05/how-to-debug-small-programs/ – jdv

+0

@Iguananaut更像是“颜色”定义在哪里...... –

回答

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你想实现这一点:

#while loop, stops @ step 750, or when a px == red/blue 

这不起作用:

while robotcount < 750 or color == red or color == blue: 

这将是简单的使用for循环,而不是:

for robotcount in range(750): 
    if color == red or color == blue: 
     break 

您也可以使用while循环,修复你的条件(注意!=):

while robotcount < 750 or color != red or color != blue: 
+0

当通过红色框绘制线条时,它仍然不会停止,并且每个最后一个if then语句都会输出一个不同的字符串。 – ohGosh

+0

还需要使用while语句,但尚未使用for循环。 – ohGosh

+0

用'while'添加一个选项。 –