循环嵌套
while 嵌套就是 while里面还有while
row
= 1
while row
<= 5:
print("*" * row
)
row
+= 1
row
= 1
while row
<= 5:
col
= 1
while col
<= row
:
print("*",end
="")
col
+= 1
print("")
row
+= 1
row
= 1
while row
<= 9:
col
= 1
while col
<= row
:
print("%d * %d = %d" % (col
,row
,col
* row
),end
=" ")
col
+= 1
print("")
row
+= 1
row
= 1
while row
<= 9:
col
= 1
while col
<= row
:
print("%d * %d = %d" % (col
,row
,col
* row
),end
="\t")
col
+= 1
print("")
row
+= 1
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