计算Float值并存储在文件中的不同变量中 [英] Count Float values and store in different variables from file

问题描述

我想从文件读取浮点值（值的数量未知）&在我的基于MFC对话的应用程序中分配给不同的变量。我做了很多尝试，但它只从值中检索一个值!!

如何做到这一点？

首先尝试ony检索拳头值

 fscanf（fp，％0.20f \ t，& t21）; 
 fscanf（fp，％0.20f \ t，& t31）; 
 
 t21 = o * 1e12; 
 t31 = o * 1e12 ;; 
 fclose（fp）; 

另一个成功尝试检索最后一个值（我认为）!!

  while （（i = fscanf（fp，  ％f，& o））！= EOF）
 {
 size + = i; 
 t21 = o * 1e12; 
 t31 = o * 1e12; 
} 
 fclose（fp）; 

如何做到这一点？请给出解决方案！

提前致谢！

解决方案

在我看来，问题是数据strcutre，因为我没有看到任何数据结构来保存文件中的读取值。请使用链接列表。它可能有帮助

 而（（i = fscanf（fp， ％f，& o））！= EOF）
 {
 size + = i; 
 t21 = o * 1e12; 
 t31 = o * 1e12; 
} 
 fclose（fp）; 

在上述情况下声明表达循环后的整数变量

就像这样

while（（i = fscanf（fp，& quot;％f& quot;，& amp; o） ））！= EOF）



{int n = 0;



t21 = o * 1e12;

t31 = o * 1e12;



n ++;

}



/ *这里通过取n值你可以计算通过



循环传递多少个浮点变量根据你可以计算内存的值用于该操作。 * /

I wanted to read float values from file(count of values is not known)& assign to different variables in my MFC dialogue based application.I do s many try,but it retrieves only one value from value!!
How to do that?
First Try ony retrieves fist value

fscanf(fp,"%0.20f\t",&t21);
fscanf(fp,"%0.20f\t",&t31);

        t21=o*1e12;
        t31=o*1e12;;
fclose(fp);

Another success try retrieves last value(I think)!!

while ((i=fscanf(fp,"%f",&o))!=EOF)
	{
		size+=i;
		t21=o*1e12;
		t31=o*1e12;
	}
fclose(fp);

How to do that?please give solution!
Thanks in advance!

解决方案

It seems to me that the problem is the data strcutre as i don't see any data strucutre to hold read values from file. Please use linklist. It might help

while ((i=fscanf(fp,"%f",&o))!=EOF)
    {
        size+=i;
        t21=o*1e12;
        t31=o*1e12;
    }
fclose(fp);

In above case declare an Integer variable after the expression of loop
just like this
while ((i=fscanf(fp,"%f",&o))!=EOF)

{ int n = 0;

t21=o*1e12;
t31=o*1e12;

n++;
}

/* Here By taking n value you can count how many float variables passed through the

loop according to that value you can calculate the memory used for that operation. */

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