Week12_鍵盤_滑鼠控制角度

 Week12

1.先開啟Empty file檔案命名week12-1_printf_fprintf

#include <stdio.h>

int main()

{

    FILE * fout = fopen("file.txt","w");

    printf("Hello World!\n");

    fprintf(fout,"Hello World!在桌面!");

}

2.第二個開啟開啟Empty file檔案命名week12-2_scanf_fscanf

#include <stdio.h>

int main()

{

    FILE * fin = fopen("file.txt","r");

    char line[100];

    fscanf(fin,"%s",line);

    printf("從file.txt讀到了: %s\n",line);

    fscanf(fin,"%s",line);

    printf("從file.txt讀到了: %s\n",line);

}

3.第三個(結合) : 開啟Empty file檔案命week12-3_many_number_scanf_printf_fscanf_fprintf

#include <stdio.h>

int main()

{

    int a[10]={10,20,30,40,50,60,70,80,90,100};

    int b[10]={};

    ///write

    FILE * fout = fopen("file3.txt","w");

    for(int i=0;i<10;i++){

        printf("%d ",a[i]);

        fprintf(fout,"%d ",a[i]);

    }

    printf("\n");

    fprintf(fout,"\n");

    fclose(fout);///關起flie3

    ///read

    FILE * fin = fopen("file3.txt","r");

    for(int i=0;i<10;i++){

        fscanf(fin, "%d", &b[i]);

        printf("b%d:%d ",i,b[i]);

    }

    fclose(fin);

}