qfedu-c-level/day4/union_test.c

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2023-07-06 15:02:06 +08:00
#include <stdio.h>
#include <string.h>
union Data{
int i;
float f;
char str[20];
};
int main(){
union Data data;
data.i = 10;
printf("data.i: %d\n", data.i);
data.f = 3.14;
printf("data.f: %f\n", data.f);
strcpy(data.str, "Hello");
printf("data.str: %s\n", data.str);
return 0;
}