OUT=0;HC574(); delay(60000); while(1) {
k=key(); if(k<=0x0f) {
display[0]=k/10; display[1]=k; }
for(i=0;i<2;i++) {
P1=(~(0X01<
OUT=0;HC574(); delay(60000); while(1) {
k=key(); if(k<=0x0f) {
display[0]=k/10; display[1]=k; }
for(i=0;i<2;i++) {
P1=(~(0X01<