C语言计算器程序源代码

WordCursor=0;
WordListSize=0;
IndexCursor=0;
IndexSize=0;
// Index[=OPER;
printf("Cal>"); //初始化完成，输出提示符
i=0;
while((ch=getchar())!='\n')
case 't':code=11;break; //tg
case 'C':code=12;break; //ctg
case 'l':code=13;break; //log
default:code=-1;break;
};
return code;
{
if(i>MAX) /*输入超长，则出错*/
{
Err(0,i,"输入的表达式长度超过规定值!\n");
isErr=1;
break;
}
if(isupper(ch))
char Word[WORD_LEN+1];
double long num,num1,num2,weight,tempnum;
int Oper;
int isDecimal,isErr,isNumber,isEnd;
char CurrentOper;
int i,j,k,m,n;
0, 0, 0, 0, 0, 0,-1, 0,-1, 0, 0, 0, 0, 0, /* ctg */
0, 0, 0, 0, 0, 0,-1, 0,-1, 0, 0, 0, 0, 0}; /* lg */
0, 0, 0, 0, 0, 0, 1, 0,-1, 0, 0, 0, 0, 0, /* ! */
0, 0, 0, 0, 0, 0,-1, 0,-1, 0, 0, 0, 0, 0, /* ( */
"clr",
"clear",
"window", //窗口模式
"fullscr", //全屏模式
"",
"",
"",
char ch;
num=0.0;
num1=0.0;
num2=0.0;
tempnum=0.0;
Oper=-1;
while(1)
{
for(i=0;i<=MAX;i++) //表达式初始化,中间表索引初始化
{
Expression[i]='\0';
}
int WordCode(char* word)
{
int i;
for(i=0;i<25;i++)
if(strcmp(KeyWord[i],word)==0)
break;
if(i>=25)
return -1;
else
return i;
}
void help()
int Operator[STACK_SIZE];
int OperStackTop;
double long Number[STACK_SIZE];
int NumStackTop;
double long NumList[STACK_SIZE];
int NumCursor,NumListSize;
Index[i]=-1;
}
for(i=0;i<STACK_SIZE;i++) //操作符栈和数字栈初始化
{
Operator[i]='0';
Number[i]=0.0;
NumList[i]=0.0;
OperList[i]=-1;
int OperList[STACK_SIZE];
int OperCursor,OperListSize;
int WordList[STACK_SIZE];
int WordCursor,WordListSize;
int Index[MAX+1];
int IndexCursor,IndexSize;
char KeyWord[36][WORD_LEN+1]={"sin", //前12个为函数，多余的用于扩展
"cos",
"tan",
"tg",
"ctg",
"lg",
int Priority[14][14]={2, 1, 1, 1, 1, 1, 1,-1,-1, 1, 1, 1, 1, 1, /* \0 */
0, 1, 1, 1, 1, 1, 1, 0,-1, 1, 1, 1, 1, 1, /* + */
{
printf("显示帮助信息!\n");
return;
}
void version()
{
printf("显示版本信息!\n");
return;
}
void Err(int errcode,int position,char *p)
{
printf("\n ERR:%d Position:%d %s",errcode,position,p);
"",
"",
"",
"",
"",
""};
int OperCode(char c)
{
WordList[i]=-1;
}
NumStackTop=-1; //栈顶指针初始化
OperStackTop=0; //操作符栈压入\0
Operator[OperStackTop]=OperCode('\0');
#define WORD_LEN 8
#define POP 1
#define PUSH 0
#define ERR -1
#define END 2
#define OPER 0
#define NUM 1
#define WORD 2
#define ADD 1
#define SUB 2
"",
"",
"",
"",
"",
"",
"",
"",
"",
"help", // 后面为命令，多余的为扩展
return;
}
double long factorial(int i)
{
if(i==1 || i==0)
return(1.0);
else
return(i*factorial(i-1));
}
main()
{
char Expression[MAX+1];
0, 0, 0, 0, 0, 0,-1, 0,-1, 0, 0, 0, 0, 0, /* cos */
0, 0, 0, 0, 0, 0,-1, 0,-1, 0, 0, 0, 0, 0, /* tg */
#define MUL 3
#define DIV 4
#define POW 5
#define FAC 6
#define BRA_L 7
#define BRA_R 8
#define SIN 9
#define COS 10
#define TAN 11
#define CTG 12
#define LG 13 //以10为底的常用对数
//#define LN 14
//#define LOG 15
//行标为当前操作符代号，列标为栈顶元素代号
//2表示计算结束，0表示当前操作符进栈，1表示栈顶操作符出栈
// \0 + - * / ^ ! ( ) sin cos tg ctg lg
case '^':code=5;break;
case '!':code=6;break;
case '(':code=7;break;
case ')':code=8;break;
case 's':code=9;break; //sin
case 'c':code=10;break; //cos
//strcmp(s1,s2) 当s1大于s2时，返回1 ，s1小于s2时，返回－1，相等时，返回0
#include "stdio.h"
#include "ctype.h"
#include "string.h"
#include "math.h"
#define MAX 256
#define STACK_SIZE 128
-1,1, 1, 1, 1, 1, 1, 1,-1, 1, 1, 1, 1, 1, /* ) */
0, 0, 0, 0, 0, 0,-1, 0,-1, 0, 0, 0, 0, 0, /* sin */