function labelModel(_form) {
var fields = _form.getFields();
for (var i = 0, l = fields.length; i < l; i++) {
var c = fields[i];
if (c.getClass === "fieldTitle") {
if (c.setReadOnly)
c.setReadOnly(true); //只读
if (c.setIsValid)
c.setIsValid(true); //去除错误提示
if (c.addCls)
c.addCls("asLabel"); //增加asLabel外观
}
}