C语言界面程序结构.doc

一课资料网/#include stdio.h#include stdlib.h#define PAI 3.14#include stdio.hvoid jiemian();void area() ;void zhou() ;double fact();void djx();main()int item;jiemian();while (1) printf(please select a item:);scanf(%d,&item);switch (item) case 1: area() ; break;case 2: zhou() ; break;case 3: djx() ; break;case 5: fact(); break;case 8: system(cls); break;case 9: jiemian(); break;case 0: goto loop;default: printf(n input error!nn); loop: ;void jiemian() /* zhi zuo jie mian! */int item;printf(tt*This is a main program!*nnnn);printf(ttt* 1.area *n);printf(ttt* 2.zhouchang *n);printf(ttt* 3.djx *n);printf(ttt* 4.fun2 *n);printf(ttt* 5.fact *n);printf(ttt* 6.fun4 *n);printf(ttt* 7.fun5 *n);printf(ttt* 8.qing ping *n);printf(ttt* 9.zhu jie mian *n);printf(ttt* 10.rrrrt *n);printf(ttt* 0.EXIT *nnnn);printf(tt*This is a main program!*nnnn);void area() /* jisuan yuan de mian ji ! */char m;int r;float area;printf(Please input r:);scanf(%d,&r);area=PAI*r*r;printf(area is:%fnn,area); void zhou() /* jisuan yuan de zhou chang ! */int r;float D;printf(Please input r:);scanf(%d,&r);D=3.14*2*r;printf(D is:%fnn,D); double fact() int n; printf(n input n: ); scanf(%d,&n); if(n=0|n=1) return(1); else return(n*fact(n-1); printf(n fact(%d)=%.0lf,n,fact(n); void djx()int a33=11,15,8,47,21,23,12,16,18;int i,j,sum=0;for(i