js and jquery batch binding event passing parameters 1 (new pig original)_javascript skills

Copy code The code is as follows:

The following is the code combined with jquery, the principle is the same
When using javascript to batch bind elements on the page and pass the incremental number, you need to write as follows: Code for the
part:

Copy code The code is as follows:

< ;input type="button" id="btn1" value="Button 1" />

< ;input type="button" id="btn3" value="Button 3" />

< ;input type="button" id="btn5" value="Button 5" />

< ;input type="button" id="btn7" value="Button 7" />

Part of the code:

Copy code The code is as follows:

$(function () {
var i;
for (i = 1; i < = 7; i ) {
$("#btn" i).bind("click", { id: i }, dis);
}
});

function dis(evt) {
alert(evt.data.id);
}