How to judge the use of SMD electrolytic capacitors?

SMD aluminum electrolytic capacitors, the cathode material used is electrolyte, non-polar and polarized, this is also the most widely used capacitor we see. How to judge the use of SMD electrolytic capacitors?

1. Appearance judgment
The end marked with a different color from the surface of the capacitor is the negative electrode, otherwise it is the positive electrode

2. Judgment of the resistance file of the multimeter
Connect the two test leads of the resistance file to the two ends of the capacitor, and the resistance value will be displayed from small to large, and finally tends to infinity.
Reverse the test leads and measure again, the resistance value will be displayed from small to large, and finally tend to infinity.
In the measurement where the resistance value increases faster, the positive meter pen indicates the negative electrode.