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发表于 2020-4-20 15:12:17
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测试题:
0.10次
1.0次 开始时 while = 0;//为假就不执行了?
2. a, b, c ; lvalue 是用于识别或定位存储位置的标识符
3.
b=3,c=b+1+5,a = c+1 + b+1;
a == 14; (9+1 + 3+1)
b == 5; (3+1+1)
c == 4; (3+1)
5.
A:
if (size > 12)
{
cost = cost * 1.05;
flag = 2;
}
bill = cost * flag;
B:
if (ibex > 14)
{
sheds = 3;
}
sheds = 2;
help = 2 * sheds;
C:
if (score < 0)
{
printf("count = %d\n", count);
}
count++;
scanf("%d", &score);
动动手:
0.
- #include <stdio.h>
- #include <math.h>
- int main()
- {
- double i, xjy, hy;
- for(i=0;hy <= xjy;i++)
- {
- xjy = hy = 10000;
- xjy += (xjy* 0.1)*i ;//单利率:利息=本金x年利率x年数
- hy = hy*pow((1 + 0.05) ,i);//复利率:F=P*(1+i)^n
- }
- printf("%.f年之后,黑夜的投资额超过小甲鱼!\n",i);
- printf("小甲鱼的投资额是: %.2lf\n",xjy);
- printf("黑夜的投资额是: %.2lf\n",hy);
- return 0;
- }
复制代码
1.
- #include <stdio.h>
- int main()
- {
- double yuan,year;
- yuan = 40000000;
- for (year=0;yuan >= 0;year++)
- {
- yuan -= 5000000;
- yuan += yuan * 0.08;
- }
- printf("%.f年之后,小甲鱼败光了所有家产,再次回到一贫如洗......\n",year);
- return 0;
- }
复制代码
2.
- #include <stdio.h>
- #include <math.h>
- int main()
- {
- float i=1.0, n=1.0 ,s=1,Pi=0;
- for (;fabs(n) >= 10^(-8); i += 2)
- {
- Pi += n;
- s = -s;
- n = s/i;
-
- }
- Pi = 4*Pi;
- printf("Pi = %.7f",Pi);
- return 0;
- }
复制代码
3.
- #include <stdio.h>
- int main()
- {
- int sum, t=2;
- for(int year=720;year >= 0;year-=60)
- {
- sum = t;
- for (int mother=2;mother >= 0;mother--)
- {
- t += 2;
- }
- t *= 2;
- }
- printf("%d",sum);
- return 0;
- }
复制代码
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