CString.TrimLeft() CString.TrimRight()函数用法

CString str = "\n\t a";

str.TrimLeft();

str为“a”;

如果没有参数,从左删除字符(\n\t空格等),至到遇到一个非此类字符.

当然你也可以指定删除那些字符.

如果指定的参数是字符串,那么遇上其中的一个字符就删除.

CString str = "abbcadbabcadb ";

str.TrimLeft("ab");

结果"cadbabcadb "  

MSDN

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("?!"); 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".