For an SVG object to respond to a scripted event, the prefix on is added to the trigger names, so click becomes onclick, mouseover becomes onmouseover, and so forth.

要让一个SVG对象对脚本中的事件作出响应，要在触发器名上加前缀on，这样click就变为onclick,mouseover就变为onmouseover，等等。

youdao

For an SVG object to respond to a scripted event, the prefix on is added to the trigger names, so click becomes onclick, mouseover becomes onmouseover, and so forth.

要让一个SVG对象对脚本中的事件作出响应，要在触发器名上加前缀on，这样click就变为onclick,mouseover就变为onmouseover，等等。

youdao