jQuery tips

1. Descendant(E F), select all elemens (the E's children, grandchildren, great-grandchildren, and so on) matched by F that are descendatants of matched by E.

2. Child(E > F), select all elements matched by F that are childern of an element matched by E

转载于:https://www.cnblogs.com/yang_sy/archive/2010/08/05/1793050.html