var collNames = db.getCollectionNames();
for (var i = 0; i < collNames.length; i++) {  
    if (collNames[i].indexOf("不想要的表")> -1)continue;
  var coll = db.getCollection(collNames[i]); 
  var stats = coll.stats(1024 * 1024); 
  print("|name:",stats.ns,"|size:", stats.storageSize,"|count:",stats.count);
   
}