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import debug for debug;
class event {
func init() {
self._func = []; // callback functions list
}
func clear() {
self._func.clear();
}
func += (fn) {
if(typeof(fn) != "function")
debug.assert("wrong type");
if(!self._func.contains(fn))
self._func.push(fn);
else
debug.logError("已经存在这个方法");
}
func -= (fn) {
if(typeof(fn) != "function")
debug.assert("wrong type");
self._func.remove(fn);
}
func () (...){
foreach(var fn in self._func) {
fn(...);
}
}
}
/*
var Say = new event();
Say += func(str) {
io.print(str);
}
Say("hi");
Say.clear();
*/
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