C语言中的printf（"%d\n",x|y）是什么意思？
C\u8bed\u8a00printf("%d\n,x<y?y:x")\u662f\u4ec0\u4e48\u610f\u601d\u5199\u9519\u4e86\u5427\u3002\u3002\u5e94\u8be5\u662f printf("%d\n",x<y?y:x)
\u5c31\u662f\u8f93\u51fa x<y?y:x \u8fd9\u4e2a\u8868\u8fbe\u5f0f\u7684\u503c\uff0c\u8fd9\u662f\u4e2a\u4e09\u76ee\u8fd0\u7b97\u7b26\uff0c\u7531x<y\u662f\u5426\u4e3a\u771f\u5224\u5b9a\uff0c\u4e3a\u771f\u7684\u8bdd\u503c\u4e3ay\u7684\u503c\uff0c\u5047\u7684\u8bdd\u503c\u4e3ax\u3002
printf("%d,%d\n",(++x,y),y++); \u5148\u8f93\u5165y\u5728\u8f93\u51fay++ \uff0c\uff08++x\uff0cy\uff09\u9017\u53f7\u8fd0\u7b97\u8fd4\u56de\u6700\u540e\u4e00\u4e2a\u5373y
\u4e0d\u540c\u7f16\u8bd1\u5668\uff0c\u5bf9\u4e8e\u8fd0\u7b97\u987a\u5e8f\u6ca1\u6709\u7edf\u4e00\uff0c\u6709\u70b9\u5148y++\uff0c\u5728\uff08++x\uff0cy),\u6709\u7684\u76f8\u53cd\u3002
绛旓細鍦C璇█涓璸rintf( )鏄笓闂ㄧ敤浜庤緭鍑虹殑璇彞銆 鐢ㄦ硶濡備笅锛1銆printf锛)鍑芥暟鏄牸寮忓寲杈撳嚭鍑芥暟锛屼竴鑸敤浜庡悜鏍囧噯杈撳嚭璁惧鎸夎瀹氭牸寮忚緭鍑轰俊鎭2銆乸rintf锛)鍑芥暟鐨勮皟鐢ㄦ牸寮忎负锛 printf(锛傦紓, )銆3銆佹牸寮忚緭鍑猴紝瀹冩槸c璇█涓浜х敓鏍煎紡鍖栬緭鍑虹殑鍑芥暟锛堝湪 stdio.h 涓畾涔夛級銆傜敤浜庡悜缁堢锛堟樉绀哄櫒锛屾帶鍒跺彴绛夛級杈撳嚭瀛楃銆
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绛旓細include<stdio.h> int main(){int num;double sum = 0;int count = 0;while(scanf("%d", &num) && num != -1)//杈撳叆-1鍋滄} {sum += num;count++;} printf("%f", sum / count);return 0銆
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