分析下列程序的运行结果#include int main(){int a=25,b=125;float x=12.34567,y=3.1415926;printf("a=%4d,b=%5d,c=%d\n",a,b,a+b);printf("x=%7.2f,y=%5.2，z=%f\n",x,y,x+y);printf("x=%-7.2f,y=%-5.2f,z=%f\n",x,y,x+y);return 0;}