若ch為char型變量,k為int型變量(已知字符a的ASCII十進(jìn)制代碼為97), 則以下程序段的執(zhí)行結(jié)果是(). ch=’a’; k=12; printf("%x,%o,",ch,ch); printf("k=%%%d\n",k);
A.因變量類型與格式描述符的類型不匹配,輸出無定值 B.輸出項(xiàng)與格式描述符個(gè)數(shù)不符,輸出為零值或不定值 C.61,141,k=%12 D.61,141,k=%d
以下程序段的輸出結(jié)果為(). char c[]="abc"; int i=0; do while(c[i++]!=’\0’);printf("%d",i-1);
A.abc B.ab C.2 D.3
A.#define PI 3.141592 B.#define S345 C.int max(x,y); int x,y; { } D.static char c;