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                    ???? Python ???
                    ??15?? ????Python??????
                    ???? exec??eval??? ????

                    exec??eval???

                    exec?????????д????????????????е?Python??????磬?????????????????????????Python??????????????????exec????????Щ?????????????????????

                    >>> exec 'print "Hello World"'
                    Hello World

                    eval???????????洢????????е???ЧPython????????????????????????

                    >>> eval('2*3')
                    6


                    ???? ????? ????
                    lambda??? ??? assert???
                    ?????
                    @ssv

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                                      这里只有精品视频