First of all, are you sure you use the plug-in version, version is different, the problem of is different also, I am using 3.2.1 version, the function of a few days ago I was ready to run today make a mistake, make the along while also didn’t know that is wrong, the best search carefully, turned out to be the introduction of the jquery library, may be I introduce package version low, I changed a js library right now, is really a pit dad ah, who needs this demo can email me!!!!!!!