如何用C语言将txt文档中部分内容导入数据库或取出

#include#include#includeintmain(){FILE*fin,*foutinta,b,c,d,sfin=fopen("f1.txt","r")//原始数据文件fout=fopen("f2.txt","w")//保存结果文件fscanf(fin,"%d%d%d%d",&a,&b,&c,&d)while(!feof(fin)){s=(int)sqrt((a-b)*(a-b)+(c-d)*(c-d))fprintf(fout,"%d\n",s)fscanf(fin,"%d%d%d%d",&a,&b,&c,&d)}fclose(fin)fclose(fout)}

给你个思路

for(int i=0i<listview.rows.counti++)

{

    cmd=new sqliteCommond(conn)

    string sql="insert into xxx (a,b,c)values('"+listview.rows[i][0].tostring()+"','"+listview.rows[i][1].tostring()+"','"+listview.rows[i][2].tostring()+"')"

    cmd.exqute()

}

    conn.close()

streamreader sr

sr.readline()

sr.readline()

sr.readline()

for(i= 1->3)

string s=sr.readline()

int i=2, j

while(s[i]==' ') i++

j=i

while(s[j]!=' ') j++

string par1=s.substring(i,j)

大概就是这样

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