i=1
while i <=5 :
j =1
while j<= 2*i-1 :
print ("*",end="")
j+=1
print("")
i+=1
示例:
i=1
while i <=5 :
j =1
while j<= 2*i-1 :
print ("*",end="")
j+=1
print("")
i+=1
示例:
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