van der Waals heterostructures integrated by two-dimensional (2D) material exhibit potential for design multifunctional electronics. In this work, we demonstrated a simple strategy to realize multifunctional electronics in a single device composed by tin disulfide (SnS₂) and molybdenum ditelluride (MoTe₂). Via a rapid thermal annealing treatment in the dry air/vacuum environment, the carrier type in MoTe₂ would change to p/n-type, and the MoTe₂/SnS₂ heterostructure device showed three distinct transfer behaviors, including unipolar, ambipolar, anti-ambipolar. Based on different characteristics, various logic circuits were designed, such as the binary-states inverter, ternary-states inverter, and p-n diode.