CString::TrimLeft

void TrimLeft( );当在没有参数的情况下调用时，TrimLeft删除字符串最前面的换行符，空格和tab字符。

void CString::TrimLeft( TCHAR chTarget );

void CString::TrimLeft( LPCTSTR lpszTargets );

Parameters

chTarget

The target characters to be trimmed.

lpszTargets

A pointer to a string containing the target characters to be trimmed.

Remarks

Call the version of this member function with no parameters to trim leading whitespace characters from the string. When used with no parameters, TrimLeft removes newline, space, and tab characters.

Use the versions of this function that accept parameters to remove a particular character or a particular group of characters from the beginning of a string.

For more information, seeStrings Topics in Visual C++ Programmer’s Guide

Example

In this example, the string "\t\t ****Hockey is best!" becomes "Hockey is best!":

CString strBefore;
CString strAfter;strBefore = _T("\t\t   ****Hockey is best!");
strAfter = strBefore;
strAfter.TrimLeft(T_("\t *"));用来将一个特定的字符或一群特定的字符从字符串的开始处删除。_tprintf(_T("Before: \"%s\"\n"), (LPCTSTR) strBefore);
_tprintf(_T("After : \"%s\"\n"), (LPCTSTR) strAfter);

CString::TrimRight


void TrimRight( );当在没有参数的情况下调用时，消除从右侧起所遇到的所有空格字符。void CString::TrimRight( TCHAR chTarget );void CString::TrimRight( LPCTSTR lpszTargets );ParameterschTargetThe target characters to be trimmed.lpszTargetsA pointer to a string containing the target characters to be trimmed.RemarksCall the version of this member function with no parameters to trim trailing whitespace characters from the string. When used with no parameters, TrimRight removes trailing newline, space, and tab characters from the string. Use the versions of this function that accept parameters to remove a particular character or a particular group of characters from the end of a string.Example

CString strBefore;
CString strAfter;strBefore = "Hockey is Best!!!!";strAfter = strBefore;str.TrimRight('!');printf("Before: \"%s\"\n", (LPCTSTR) strBefore);printf("After : \"%s\"\n\n", (LPCTSTR) strAfter);strBefore = "Hockey is Best?!?!?!?!";strAfter = strBefore;str.TrimRight("?!");消除目标字符集合中出现的任一字符，直到遇到第一个不属于目标字符串子集的字符为止。printf("Before: \"%s\"\n", (LPCTSTR) strBefore);printf("After : \"%s\"\n\n", (LPCTSTR) strAfter);

In the first example above, the string reading, "Hockey is Best!!!!" becomes "Hockey is Best".In the second example above, the string reading, , "Hockey is Best?!?!?!?!" becomes "Hockey is Best".

CString::TrimLeft和CString::TrimRight相关推荐

CString Management (关于CString的所有操作)
CString Management (关于CString的所有操作) 作者:FreeEIM CStrings are a useful data type. They greatly simplif ...
cstring头文件(cstring头文件)
头文件有什么样的作用呢? (eg.C++编译模式[1])从以上结构图来看,头文件是用户应用程序和函数库之间的桥梁和纽带 CStringW是什么啊?和CString有什么不同? CStringW是CSt ...
关于CString TrimLeft
以前一直对TrimLeft()没有特别注意: 比如: CString str = "MR,RF"; str = str.TrimLeft("MR,"); 我们会 ...
CString::trimleft()函数介绍：
1. CString s = "0x0001"; s.TrimLeft("0x1"); AfxMessageBox(s); ...
MFC中的CString.Format及CString，string，char*之间的转换
1.CString.Format的使用:https://blog.csdn.net/wangkaishou/article/details/5846152 2.CString,string,char* ...
CString::CompareNoCase与CString::Compare的区别
函数原型:int CompareNoCase( LPCTSTR lpsz ) const; 返回值: 该函数对两个CString对象进行,如果内容完全一致则返回0:如果小于lpsz,则返回为-1:如果 ...
CString::CompareNoCase与CString::Compare的区别 .
函数原型:int CompareNoCase( LPCTSTR lpsz ) const; 返回值: 该函数对两个CString对象进行,如果内容完全一致则返回0:如果小于lpsz,则返回为-1:如果 ...
CString::ReverseFind()和CString::Find()区别
Find()是从左往右查找:ReverseFind()是从右边往左查找,但是他们返回的地址都是从左往右数的. 示例:[cpp] #include "stdafx.h" #inclu ...
C、C++基础知识之六 CString::ReverseFind()和CString::Find()区别
CString::ReverseFind int ReverseFind( TCHAR ch ) const; 返回值: 参数: ch 要搜索的字符. 说明: 此成员函数在此 CString对象中搜索 ...

CString::TrimLeft和CString::TrimRight

CString::TrimLeft

CString::TrimRight

CString::TrimLeft和CString::TrimRight相关推荐

最新文章

热门文章