编写一个计算园面积的FUNCTION过程

importjava.io.BufferedReader;importjava.io.InputStreamReader;publicclasstest{publicstaticvoidmain(St

FunctionS(rAsSingle)AsSingle'Function过程Constpi=3.1415926535898S=pi*r^2EndFunctionPrivateSubForm_Clic

importjava.util.Scanner;publicclassTest{publicstaticvoidmain(Stringagrs[]){Scannera=newScanner(Syste

#includedoublecalRectArea(doubledWidth,doubledHeigh){returndWidth*dHeigh;}voidmain(){doublea,b,mul;s

PrivateSubCommand1_Click()Dima,xAsSinglea=Val(Text1.Text)Ifa再问：x=x+a*0.2+3000*0.2怎么都乘0.2呀？

输入三角形三边长,求三角形面积.#include“math.h”main(){floata,b,c,s,area;scanf(“%f,%f,%f”,&a,&b,&c);s=1.0/2*(a+b+c);

intarea(intx,inty){returnx*y;}intgri(intx,inty){return2*(x+y);}

解题思路：赋值语句解题过程：varSWOC={};SWOC.tip=false;try{SWOCX2.OpenFile("http://dayi.prcedu.com/include/readq.ph

publicclassTest{publicstaticvoidmain(String[]args){System.out.println("圆的面积："+area(2));System.out.pr

#include <stdio.h>float area(float r){  return 3.14159 *&nb

若梯形的上底为a、下底为b、高为h，面积为S，故程序语句如下：INPUT“梯形的上底，下底，高”；a，b，hS=（a+b）*h/2PRINT“正方形的面积为：”；SEND

#includeintgetArea(intlen){\x09returnlen*len;}intmain(){\x09intn;\x09intarea;\x09\x09printf("请输入边长:\

#includevoidmain(){doubler,s,l;printf("请输入圆的半径\n");scanf("%lf",&r);s=3.14159*r*r;l=2*3.14159*r;print

function [ s ] = solve_area( a,b,c )  p=(a+b+c)./2;&nbs

#includeusingnamespacestd;voidmain(){doublex,y,z;cin>>x>>y>>z;cout

privatefunctions(byvalrasdouble)asdoubles=PI*r*rendfunction

voids(folata,folatb,folatc){folatp;p=(a+b+c)/2;S=√[p(p-a)(p-b)(p-c)];returns;}

//使用海伦公式#include/*ForIO*/#include/*Forsqrt()*/intmain(void){doublea,b,c,p,s;printf("请输入a,b和c：");scan

"计算两个给定的长方形的周长和面积"是两个长方形还是一个长方形..需要输入什么条件..如果是输入长,宽,然后计算面积的话..那么#include"stdio.h"voidmain(){floatcha

m=2a+2b;应该改成m=2*a+2*b;程序中2a,2b是不允许的,没有意义的.