求fprintf(fp,"%s\n",xx[i]);fclose(fp);logo(x 2,y 4,t1,COPY_

fclose(fp);是什么意思 IPip;fclose(fp); fclose(fp);f_num=0 fclose(fp);怎么理解啊? fscanf(fp,"%d ",&cars[i][0]); 怎么改为cin形式 fprintf(fp,"%d ",car 请问一下fclose(fp);inti,m=0; fp=fopen(argv[2],"wb ");fy=my-y[i]; 急用!已知抛物线y方＝4X,焦点为F,顶点为O,点P在抛物线上移动,Q是FP的中点,求点Q 重复多次fclose一个打开过一次 FILE fp指针会有什么结果 已知抛物线y^2=4x,焦点为F,顶点为0,点P在抛物线上移动,M是FP的中点,求点M的轨迹方程. 过双曲线X^2-Y^2=4的右焦点作倾斜角为105度的直线,交曲线于P、Q两点,则|FP|*|FQ|= 代码if((fp=fopen(filename,"r"))==NULL) { fprintf(stderr,"Error