Question

请教高人.40．若以下变量均是整型,且num＝sum＝7;则执行表达式sum＝num++, sum++,++num后su

Answer 1

x+a%3*(int)(x+y)%2/4

2.5 + 7%3*(int)(2.5+4.7)%2/4

2.5 + 1 * (int)(7.2)%2/4

2.5 + 1 * 7%2/4

2.5 + 7%2/4

2.5 + 1 / 4

2.5 + 0

2.5 + 0.0

得 A）2.500000 默认 printf("%f",...); 输出格式.