1.txt
内容:
22.468 1 50
33.411 12 3
77.639 29 3
44.811 20 18
我们将读取文件,并把用空格分开的数据分别存放到临时变量并输出
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#include <stdio>
int main()
{
char filename[] = "1.txt";
FILE *fp;
if((fp = fopen(filename,"r")) == NULL)
{
printf("error!");
return -1;
}
while (!feof(fp))
{
float fData = 0;
int iData1 = 0, iData2 = 0;
fscanf(fp, "%f", &fData);
fscanf(fp, "%d", &iData1);
fscanf(fp, "%d", &iData2);
printf("%f %d %d\n", fData, iData1, iData2);
//这里可以做其他操作,如把数据保存到数组中以便以后使用
}
fclose(fp);
return 0;
}
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输出:
22.468000 1 50
33.410999 12 3
77.639000 29 3
44.811001 20 18
Press any key to continue
如果是C++的话,可以用CStdioFile
一行行读入,然后再用sscanf把float int int 数据分别读取出来.
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