嘿,这是我在这里的第二篇文章,我只是python的新手,而我在Uni学习。我的第一个问题是“自动从dict调用键”。你知道吗
所以我最初在同一个for循环中设置了这个,但是,我得到了一个错误
The error was:__setitem__
Attribute not found.
You are trying to access a part of the object that doesn't exist.
我对dict和keys有错误的看法吗?我认为如果pictureCount=3,它将在for语句中运行3次,并创建picture[1]、picture[2]和picture[3]变量。它似乎正在经历第一个循环,但一旦到达picture[2],就会出现错误。我的思路是,没有图片[2],只有不断创造的图片[1]。如果有任何代码,你需要让我知道。你知道吗
for p in range(1,pictureCount+1):
picture[p]=makePicture(pickAFile())
for p in range(1,pictureCount+1):
width[p]=getWidth(picture[p])
height[p]=getHeight(picture[p])
totalWidth=totalWidth+width[p]
height=getHeight(picture[p])
if height > totalHeight:
totalHeight=height
这是完整的代码。你知道吗
def comicStrip():
picture={}
width={}
height={}
totalWidth=0
totalHeight=0
pixelCount=0
loopCounter=0
pictureCount=requestInteger("How many pictures do you want in the comic strip?(1-4)")
while pictureCount <1 or pictureCount >4:
pictureCount=requestInteger("How many pictures do you want in the comic strip?(1-4)")
for p in range(1,pictureCount+1):
picture[p]=makePicture(pickAFile())
for p in range(1,pictureCount+1):
width[p]=getWidth(picture[p])
height[p]=getHeight(picture[p])
totalWidth=totalWidth+width[p]
height=getHeight(picture[p])
if height > totalHeight:
totalHeight=height
cStrip=makeEmptyPicture(totalWidth, totalHeight)
pixelCount=0
while loopCounter < pictureCount:
sourceX=0
for targetX in range(pixelCount,width[p]):
sourceY=0
for targetY in range(0,height[p]):
color = getColor(getPixel(picture[1],sourceX,sourceY))
setColor(getPixel(cStrip,targetX,targetY),color)
sourceY=sourceY+1
pixelCount=pixelCount+1
sourceX=sourceX+1
addRectFilled(cStrip,0,0,p1Width,20,white)
addRect(cStrip,0,0,p1Width,20)
addRect(cStrip,0,0,p1Width,p1Height)
caption=requestString("Enter the caption for this picture.")
addText(cStrip,1,19,str(caption))
loopCounter=loopCounter+1
我敢肯定,间距是正确的,我必须重新调整后,复制和粘贴。你知道吗
代码中的错误不在线
在下面两行
该行应替换为以下内容
我不是python专家,但在for循环的第一次迭代之后,解释器似乎将数组(或dict)的高度变异为普通变量。在第二个迭代行
height[p]=getHeight(picture[p])
尝试访问元素p
,但不再存在。你知道吗我尝试了下面的代码,得到了相同的错误
相关问题 更多 >
编程相关推荐