c語言學習總結

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輸出加法程式

#include<stdio.h>int main(){    printf("#include<stdio.h>\n\n");    printf("int main()\n{\n");    printf("    int x,y;\n");    printf("    scanf(\"%%d%%d\",&x,&y);\n");    printf("    printf(\"%%d\\n\",x+y);\n");    printf("    return 0;\n}\n");    return 0;}

 檔案操作

#include<stdio.h>int main(){    int a,b;    FILE *fp;    scanf("%d%d",&a,&b);    fp=fopen("t1.txt","w");    fprintf(fp,"%d %d\n",a,b);    fp=fopen("t1.txt","r");    fscanf(fp,"%d%d",&a,&b);    fp=fopen("t2.txt","w");    fprintf(fp,"%d\n",a+b);    fclose(fp);    return 0;}

 

c語言學習總結