initMutationEvent 方法
实现
void initMutationEvent(
String? type,
bool? bubbles,
bool? cancelable,
Node? relatedNode,
String? prevValue,
String? newValue,
String? attrName,
int? attrChange) native;
void initMutationEvent(
String? type,
bool? bubbles,
bool? cancelable,
Node? relatedNode,
String? prevValue,
String? newValue,
String? attrName,
int? attrChange) native;