摘要： 下面是文档给出的（python v2.7.3 5.3.4 Calls） 1 call ::= primary "(" [argument_list [","] 2 | expression genexpr_for] ")" 3 argument_list ::= positional_arguments ["," keyword_arguments] 4 ["," "*" expression] ["," keyword_argument... 阅读全文