求解一道c语言编程，急！

（1》编写程序，以写方式在桌面建立文件“实验 1.txt’，并写入“Hello Worldr”，结束局
关闭文件。
提示：仿照实例1，填写下列程序
（2）

你题目的解答代码如下：
1

#include <stdio.h>
int main()
{
    FILE *f;
    f = fopen("实验1.txt", "w");
    fprintf(f, "Helo World!");
    fclose(f);
    printf("successful\n");
    getchar();
    return 0;
}

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如下：

#include <stdio.h>
int main(){
    FILE* f;
    f=fopen("实验1.txt","w");
    fwrite("Hello World!",1,12,f);
    fclose(f);
    printf("successfuf\n");
    getch();
    return 0;
}

【第1小题】

#include <stdio.h>
int main()
{
    FILE *f;
    f = fopen("C:\\Users\\admin\\Desktop\\实验1.txt", "w");  //实际以你的桌面路径为准
    fprintf(f, "Helo World");
    fclose(f);
    printf("successful \n");
    //getch();
    return 0;
}

【第2小题】

#include <stdio.h>
#include <string.h>
int main()
{
    FILE *f;
    int i;
    const char s[]="Say something!"; 
    f = fopen("C:\\Users\\admin\\Desktop\\实验2.txt", "w");
    for (i=0;i<strlen(s);i++){
        fputc(s[i], f);
    }
    fclose(f);
    printf("successful \n");
    //getch();
    return 0;

#include <stdio.h>
int main()
{
FILE *f;
char s[] = "Say something!";
f = fopen("实验2.txt", "w");
for (int i = 0; s[i]!='\0'; i++)
fputc(s[i],f);
fclose(f);
printf("successful\n");
getchar();
return 0;
}

题目1

#include <stdio.h>
int main()
{
    FILE *f;
    f = fopen("实验1.txt", "w+");
    fprintf(f, "Helo World!");
    fclose(f);
    printf("successful\n");
    getchar();
    return 0;
}

题目2

#include <stdio.h>
int main()
{
    FILE *f;
    char str[] = "Say something!";
    f = fopen("实验2.txt", "w+");
    for (int i = 0; str[i]!='\0'; i++)
        fputc(str[i],f);
    fclose(f);
    printf("successful\n");
    getchar();
    return 0;
}

#include <stdio.h>
int main(){
    FILE* f;
    f=fopen("实验1.txt","w");
    fwrite("Hello World!",1,12,f);
    fclose(f);
    printf("successfuf\n");
    getch();
    return 0;
}