VC6:在MFC对话框中将字符串转换为双精度 [英] VC6: Convert String to Double in MFC Dialog

问题描述

我将变量声明为CString，并且尝试使用以下语句将其转换为double.

Hi,

I declared the variable as CString and I''m trying to convert it as double using the following statement.

double Principal      = _wtof(m_Principal);

但它给出错误为 _wtof undeclared identifier
我该如何解决这个错误.如果我的陈述有误，请告诉我如何在基于MFC Dialog的应用程序中将字符串转换为双精度

谢谢.

but it gives the error as _wtof undeclared identifier
How can I solve this error. If my statement is wrong then tell me how to convert a string to double in MFC Dialog based application

Thanks.

推荐答案

使用atof()函数

use the function atof()

double Principal      = atof(m_Principal);

http: //msdn.microsoft.com/en-us/library/hc25t012%28v=vs.80%29.aspx [

我们有一个函数名称atoi ()在库中.

atoi()-> ASCII转换为整数

....... var =(double)(atoi(variable)).........

希望你知道......)

we have a function name atoi() in the library.

atoi() -> Ascii to integer

.......var = (double)(atoi(variable)).........

hope rest you knows... :)

这篇关于VC6:在MFC对话框中将字符串转换为双精度的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！