l=["Hello","world","101"] for x in range(0,2): if isinstance(L[x],str): print L[x].upper()
l=["Hello","world","101"]
for x in range(0,2):
if isinstance(L[x],str):
print L[x].upper()
为什么运行结果啥也没有
l=["Hello","world","101"]
for x in range(0,2):
if isinstance(L[x],str):
print L[x].upper()
为什么运行结果啥也没有
2016-12-08
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