摘要:
Itisnotsafetomodifythesequencebeingiteratedoverintheloop(thiscanonlyhappenformutablesequencetypes,suchaslists).Ifyouneedtomodifythelistyouareiteratin... 阅读全文
摘要:
Python’sforstatementiteratesovertheitemsofanysequence(alistorastring),intheorderthattheyappearinthesequence. 阅读全文