比方说a=["abc","def","ghi"],我要统计字母个数,也就是9个,怎么解?或者请教大神有没有方法把字母拆开,a=["abc"]变成a=["a","b","c"]?thx... 比方说a=["abc","def","ghi"],我要统计字母个数,也就是9个,怎么解?
或者请教大神有没有方法把字母拆开,a=["abc"]变成a=["a","b","c"]?
thx