int x=6, y=7; printf(“%d,”,x++); printf(“%d\n”,++y); 程序的輸出結(jié)果是()
float f=3.1415927; printf(“%f,%5.4f,%3.3f”,f,f,f); 則程序的輸出結(jié)果是()
A. char b[10]={’H’,’e’,’l’,’l’,’o’,’!’}; B. char b[10]; b="Hello!"; C. char b[10]; strcpy(b,"Hello!"); D. char b[10]="Hello!";