def triangles():
lines = [1]
while True:
yield lines
lastLine = lines
newLine = [1,1]
for i in range(1,len(lines)):
value=lastLine[i-1]+lastLine[i]
newLine.insert(i,value)
lines=newLine
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鱿鱼
def triangles():
lines = [1]
while True:
yield lines
lastLine = lines
newLine = [1,1]
for i in range(1,len(lines)):
value=lastLine[i-1]+lastLine[i]
newLine.insert(i,value)
lines=newLine