When I was in the use of blend funtion, it was found that surface should not generate an increase in the guidance to adjust the curve, I do not know the follow-up will increase the blend funtion?

Fig1. 

Fig2.  Solidworks "surface-loft" funtion

 Hello josephy,

 I believe you are looking to select guide curves to influence your blend.  To do so, you must ALT-select the guides before pulling through the blend.  You can find a better explanation of this process in our tutorial section.

I hope this helps,

James 

 Thanks James !!