Function ://This program uses SW1 (P0.0), SW2 (P0.1), SW3 (P3.6), SW4 (P3.7) as an interrupt input,// ​ and define the number on the digital control displayed. Version: V1.0 Note: SW4 === P3.7 SW3 === P3.6 SW2 === P0.1 SW1 === P0.0 SW4 in, SW4 is a circuit board labeling, four man-made Define a push to the corresponding key. P4.0 as digital bits select Port, P5 port for digital tube segment selector mouth

4 INTkey
........\KEY
........\KEY.M51
........\KEY.hex
........\KEY.plg
........\key.LST
........\key.OBJ
........\key.Opt
........\key.Uv2
........\key.c
........\key_Opt.Bak
........\key_Uv2.Bak

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