{ int a = 10, b = 8, c, d, *p1, *p2; p1 = a; p2 = b; c = *p1 + *p2; d = *p1 - *p2; printf (a+b=%d \n, c ); printf (a-b=%d \n, d ); };3.4.8 sizeof运算符;3.4.9 不同类型数据之间的转换;例:10 + a + i * f - d / e int char int float ...