Question

任何人都可以帮我解决我的代码问题。它应该做的是当我输入“创建6 5”它应该创建一个带有*的6x5矩形形状，但除非我输入“show”，否则不会显示。

这是我正在处理的代码，它还不正确，还在弄清楚如何去做。

我是编程新手。

char s[100];
    char *s1 = "show";
    char *s2 = "create";


int main()
{
    int zWidth = 0, zHeight = 0, zLoop = 0, aLoop = 0;

    do
    {
    scanf("%s %d %d", &s, &zWidth, &zHeight);

    }
    while (strcmp(s1, s) != 0);

    if(strcmp(s2, s) == 0)
    {
    //To draw the first horizontal line 
    for(zLoop = 0; zLoop < zWidth; zLoop++) 
    printf("*"); 
    printf("\n"); 

    //Drawing the vertical lines 
    for(zLoop = 2; zLoop < zHeight; zLoop++) 
    { 
        printf("*"); 
        for(zLoop = 0; aLoop < zWidth-2; aLoop++) 
            printf("*"); 
            printf("*\n"); 
    } 

    //Last horizontal Line 
    for(zLoop = 0; zLoop < zWidth; zLoop++) 
    printf("*"); 
    printf("\n");
    }


    return 0;
}

Answer 1

#include <stdio.h>

enum command_state {
    SHOW, CREATE, QUIT, HELP, INVALID
};

char Command_line[100];
const char *Show   = "show";
const char *Create = "create";
const char *Quit   = "quit";
const char *Help   = "help";
const char *QMark  = "?";

enum command_state command(void){
    if(fgets(Command_line, sizeof(Command_line), stdin) != NULL){
        char operation[16];
        sscanf(Command_line, "%15s", operation);
        if(!strcmp(operation, Show))
            return SHOW;
        else if(!strcmp(operation, Create))
            return CREATE;
        else if(!strcmp(operation, Quit))
            return QUIT;
        else if(!strcmp(operation, Help) || !strcmp(operation, QMark))
            return HELP;
        else
            return INVALID;
    }
    return QUIT;//input EOF
}

int main(void){
    int rWidth = 0, rHeight = 0, aLoop = 1;
    while(aLoop){
        switch(command()){
        case SHOW :
            if(rWidth == 0 || rHeight == 0)
                printf("execute create is required before\n");
            else {
                int h, w;
                for(h = 0; h < rHeight; h++) {
                    for(w = 0; w < rWidth; w++) 
                        printf("*"); 
                    printf("\n");
                }
            }
            break;
        case CREATE :
            if(2!=sscanf(Command_line, "create %d %d", &rWidth, &rHeight) ||
              rWidth < 1 || rHeight < 1){
                rWidth = rHeight = 0;
                printf("invalid create command\n");
            }
            break;
        case QUIT :
            aLoop = 0;
            break;
        case HELP :
            printf(
                "help or ? : this\n"
                "create w h: set to size of rectangle width and  height\n"
                "show      : draw filled rectangle\n"
                "quit      : end of program\n"
            );
            break;
        default : 
            printf("invalid command\n");
        }
    }

    return 0;
}

如何在C中保存输入的字符串和整数

1 个答案: