5--结构体.pptVIP

#include stdio.h void main() { struct date { int day,month,year; }; struct date date1; printf(day=); scanf(%d,date1.day); printf(month=); scanf(%d,date1.month); printf(year=); scanf(%d,date1.year); printf(%d/%d/%d\n,date1.year,date1.month,date1.day); } #include stdio.h void main() { typedef struct square { int length; }SQUARE; SQUARE s1; printf(length=); scanf(%d,s1.length); printf(length=%d,area=%d\n,s1.length,s1.length*s1.length); SQUARE s2[10]; int i,sum=0; for(i=0;i10;i++) { printf(the square%ds length is ,i); scanf(%d,s2[i].length); sum+=s2[i].length * s2[i].length; } printf(the areas = %d\n,sum); } In an algorithm, define new types for a polynome (多项式)whose degree is 10 or less a0x0+a1x1+a2x2+…+an-1xn-1 #include stdio.h #include math.h void main() { typedef struct polygon { int x,y; }Polygon; Polygon p[30]; int i,n; float value=0; printf(n=); scanf(%d,n); // 多边形的边数 for(i=0;in;i++) // 输入多边形各顶点的坐标 { printf(%d:x=,i+1); scanf(%d,p[i].x); printf( y=); scanf(%d,p[i].y); } for(i=0;in;i++) printf(%d:(%d,%d)\n,i+1,p[i].x,p[i].y); for(i=0;in;i++) value+=sqrt( pow((p[i].x - p[(i+1)%n].x ),2) + pow((p[i].y -p[(i+1)%n].y),2) ); printf(the value is %f,value); } Exercise 42?: managing the results of a soccer team Define a data structure to store the goals of soccer players; for each player,: name, forename birthdate goals have to be stored; for each goal: the name of the opponent the date of the goal are required. Write an algorithm that creates a variable named SSP (Set of Soccer Players) the type of which is the one defined in a) and loops on the following options: Questions and answers 结构体 为什么要定义结构体类型 在程序里表示一个人（姓名、年龄、性别…），怎么表示？ 想表示多个人呢？ 如何用计算机程序实现下述表格的管理？ 数组的解决方法 数组的解决方法 数据的内存管理方式 数组的解决方法 分配内存不集中，寻址效率不高 对数组赋初值时，易发生错位 结构显得零散，不易管理 希望的内存分配图 算法：定义结构体 方法一：直接定义 P1?: structure x,y?: real // x,y 是结构体的成员 EndStructure Id1?: structure