拉斐尔节点选择

for (i = 0; i < 2; ++i) {
    var square = paper.rect(0 + 100*i, 0, 70, 70);
    square.node.setAttribute(\'id\', \'_\' + i);
    square.node.setAttribute(\'class\', \'foo\');
}

<svg height=\"560\" width=\"560\" version=\"1.1\" xmlns=\"http://www.w3.org/2000/svg\"><desc>Created with Raphael</desc><defs></defs><rect class=\"foo\" id=\"_0\" stroke=\"#000\" fill=\"none\" ry=\"0\" rx=\"0\" r=\"0\" height=\"70\" width=\"70\" y=\"0\" x=\"0\"></rect><rect class=\"foo\" id=\"_1\" stroke=\"#000\" fill=\"none\" ry=\"0\" rx=\"0\" r=\"0\" height=\"70\" width=\"70\" y=\"0\" x=\"100\"></rect></path></svg>

function change_class() {
    //something here
}

square

squares = [];
for (i = 0; i < 2; ++i) {
    var square = paper.rect(0 + 100*i, 0, 70, 70);
    square.node.idx = i;
    square.node.setAttribute(\'class\', \'foo\');
    squares.push(square);
}

squares[0].node.setAttribute(\'class\', \'other\');

change_class()

$(\'rect\').click(function() {
    change_class(); // the click function should pass \"$(this)\" to change_class ?
});