c语言练习(输入，输出)-44

使用fgetc,fputc等

#include <stdio.h>
#define _CRT_SECURE_NO_WARNINGS 1



int main() {
    //从键盘上读取一行文本信息
    char buf[1024] = { 0 };
    fgets(buf, 1024, stdin);
    fputs(buf, stdout);
    return 0;

运行

输入ayue后

#include <stdio.h>
#define _CRT_SECURE_NO_WARNINGS 1



int main() {
    //从键盘上读取一行文本信息
    char buf[1024] = { 0 };
    gets(buf);
    puts(buf);
    return 0;

效果与上面相同

 

#define _CRT_SECURE_NO_WARNINGS 1
#include <stdio.h>

struct S {
    int n;
    float score;
    char arr[10];
};

int main() {
    struct S s = { 100,3.14f,"ayue" };
    FILE* pf = fopen("test.txt", "w");
    if (pf == NULL) 
    {
        return 0;
    }
    fprintf(pf,"%d %f %s", s.n, s.score, s.arr);
    fclose(pf);
    pf = NULL;
    return 0;
}