实验二part1.1

#include
int main() {
 int x=1234;
 double f=123.456;
 double m=123.456;
 char ch=‘a‘;
 char a[]="Hello, world!";
 int y=3, z=4;
 printf("%d %d\n", y, z);
 printf("y=%d, z=%d\n", y,z);
 printf("%8d,%2d\n", x,x);
 printf("%f, %8f, %8.1f, %0.2f, %.2e\n",f,f,f,f,f);     //小数点后位数限制要四舍五入，对于浮点型并不能做到每个数字都精准表达，只能取最接近的数
 printf("%lf\n",m);
 printf("%3c\n", ch);
 printf("%s\n%15s\n%10.5s\n%2.5s\n%.3s\n",a,a,a,a,a);
 return 0;
}

实验二part1.1