L = ['Angle',"Mod","lila","teacher",23]
def trim_data(l): a = [] for x in l: print(x) if isinstance(x, str): a.append(x.lower()) else: a.append(x) print(a)
trim_data(L)
ls = ['Angle',"Mod","lila","teacher",23]
print([str.lower(i) for i in ls if isinstance(i, str) == True])
前者调用结果包括在内的数字 后者不包括
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俐_心
L = ['Angle',"Mod","lila","teacher",23]
def trim_data(l): a = [] for x in l: print(x) if isinstance(x, str): a.append(x.lower()) else: a.append(x) print(a)
trim_data(L)
ls = ['Angle',"Mod","lila","teacher",23]
print([str.lower(i) for i in ls if isinstance(i, str) == True])
前者调用结果包括在内的数字 后者不包括