数据分析师2017-09-30 23:08:27
Why does the form tag not respond when it gets focus? -PHP Chinese website Q&A-Why does the form tag not respond when it gets focus? -PHP Chinese website Q&A
Please watch and learn.
迷茫2016-12-20 13:57:20
onfocus是聚焦,form是表单,表单没有聚焦的对象,因为表单中可以有多种元素,如select,或者input等等,只有它的子元素才有吧。个人认为。