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# re: 求助：CString Format自身的溢出的問題 2008-07-19 11:35 斯卡

不明白你的title后為什么要加"  回復(fù)  更多評(píng)論   

# re: 求助：CString Format自身的溢出的問題 2008-07-19 12:06 三不戒大師

title值是變量啊，并不是固定值
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# re: 求助：CString Format自身的溢出的問題[未登錄] 2008-07-19 12:15 Kevin

title 不是字符串對(duì)象, 而不是char指針, 你應(yīng)該 (LPCSTR)title 才對(duì), 因?yàn)镃String重載了LPCSTR, 這樣在運(yùn)行時(shí)才能自動(dòng)轉(zhuǎn)換成char指針, 匹配到 %s  回復(fù)  更多評(píng)論   

# re: 求助：CString Format自身的溢出的問題[未登錄] 2008-07-19 12:16 Kevin

改一下"title 不是字符串對(duì)象" 應(yīng)為 "title是CString對(duì)象"  回復(fù)  更多評(píng)論   

# re: 求助：CString Format自身的溢出的問題 2008-07-19 12:40 陳梓瀚(vczh)

CString能隱式轉(zhuǎn)換到LPCTSTR的，這個(gè)倒不是問題。難道CString非空的時(shí)候，F(xiàn)ormat就默認(rèn)『該對(duì)象被重新利用，而不是重新構(gòu)造一個(gè)新的CString對(duì)象』？  回復(fù)  更多評(píng)論   

# re: 求助：CString Format自身的溢出的問題 2008-07-19 12:54 wxyz

CString::Format
void Format( LPCTSTR lpszFormat, ... );

void Format( UINT nFormatID, ... );

Parameters

lpszFormat

A format-control string.

nFormatID

The string resource identifier that contains the format-control string.

Remarks

Call this member function to write formatted data to a CString in the same way that sprintf formats data into a C-style character array. This function formats and stores a series of characters and values in the CString. Each optional argument (if any) is converted and output according to the corresponding format specification in lpszFormat or from the string resource identified by nFormatID.
////!!!!!這地方好像說了.
The call will fail if the string object itself is offered as a parameter to Format. For example, the following code:

CString str = "Some Data";
str.Format("%s%d", str, 123); // Attention: str is also used in the parameter list.

will cause unpredictable results.
////!!!!
When you pass a character string as an optional argument, you must cast it explicitly as LPCTSTR. The format has the same form and function as the format argument for the printf function. (For a description of the format and arguments, seeprintf in the Run-Time Library Reference.) A null character is appended to the end of the characters written.

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# re: 求助：CString Format自身的溢出的問題 2008-07-19 16:01 三不戒大師

@wxyz
謝謝，終于弄明白是怎么回事了  回復(fù)  更多評(píng)論   

# re: 求助：CString Format自身的溢出的問題 2008-07-19 17:01 陳梓瀚(vczh)

經(jīng)常看到msdn里面把bug當(dāng)成feature……  回復(fù)  更多評(píng)論   

# re: 求助：CString Format自身的溢出的問題[未登錄] 2008-07-20 08:55 Leo

@陳梓瀚(vczh)
這本來就是一種未定義情況，如同snprintf中將自己作為一個(gè)參數(shù)一樣…  回復(fù)  更多評(píng)論