关于结构 - c

时间:2016-12-28 22:33:24

标签: c struct scanf

所以我试着编写这段代码并用结构测试一些东西..它编译但是当我到达" scanf("%d",sp [i] .cylinder);"当我给scanf一个int输入时,exe崩溃了。我错过了一些明显的东西吗?

#include <stdlib.h>
#include <stdio.h>

struct car {
    char name[20];      
    char company[20]; 
    int  cylinder;  
    int  year;
    int  plates;        
};

struct car *sp;   

void function();

int main() {
    int maxcars=3;
    printf("Give number of cars \n");
    //scanf("%d", &maxcars);

    function(maxcars);

    printf("There are %d cars\n", maxcars);

    int i;
    for(i = 0; i < maxcars; i++){
        printf("%s\n", i, sp[i].name);
        printf("%s\n", i, sp[i].company);
        printf("%d\n", i, sp[i].cylinder);
        printf("%d\n", i, sp[i].year);
        printf("%d\n", i, sp[i].plates);
    }

    if (sp) {
        free(sp);
    }
    getchar();
    return 0;
}

void function(int maxcars) {
    // 


    int i;
    for (i = 1; i < maxcars; i++) {
        sp = malloc(maxcars * sizeof(struct car));
        printf("Struct for car no%d is beeing created\n", i);
        printf("Give Name: \n");
        scanf("%s",sp[i].name);
        printf("Give Manufactorer Company: \n");
        scanf("%s",sp[i].company);
        printf("Give Cylinder Capacity: \n");
        scanf("%d",sp[i].cylinder);
        printf("Give Year of Production: \n");
        scanf("%d",sp[i].year);
        printf("Give Plate Number: \n");
        scanf("%d",sp[i].plates);

        printf("%s\n",sp[i].name);
        printf("%s\n",sp[i].company);
        printf("%d\n",sp[i].cylinder);
        printf("%d\n",sp[i].year);
        printf("%d\n",sp[i].plates);
    }
}

//编辑:稍后修复了一些功能后,我有一些错别字但不会影响我的主要问题..崩溃仍在发生

//编辑2-解决方案:最终是&amp;在scanf中丢失了...谢谢指出dave!我感觉这是显而易见的事情。

0 个答案:

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