普通參數(shù)與關(guān)鍵字參數(shù)“關(guān)鍵字參數(shù)”與常規(guī)參數(shù)有什么不同？不能把所有的參數(shù)都作為name=value而不是使用位置語法？
3 回答
胡說叔叔
TA貢獻(xiàn)1804條經(jīng)驗(yàn) 獲得超8個(gè)贊
def my_function(arg1, arg2, **kwargs)
def my_function(**kwargs):
print str(kwargs)my_function(a=12, b="abc"){'a': 12, 'b': 'abc'}
汪汪一只貓
TA貢獻(xiàn)1898條經(jīng)驗(yàn) 獲得超8個(gè)贊
def foo(*positional, **keywords): print "Positional:", positional print "Keywords:", keywords
*positionalfoo()
>>> foo('one', 'two', 'three')Positional: ('one', 'two', 'three')Keywords: {}**keywords
>>> foo(a='one', b='two', c='three')Positional: ()Keywords: {'a': 'one', 'c': 'three', 'b': 'two'}>>> foo('one','two',c='three',d='four')Positional: ('one', 'two')Keywords: {'c': 'three', 'd': 'four'}
當(dāng)年話下
TA貢獻(xiàn)1890條經(jīng)驗(yàn) 獲得超9個(gè)贊
def foo(bar, baz): passfoo(1, 2)foo(baz=2, bar=1)
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