函数提供三个功能，一种是去除左侧空格和TAB、另外一种是去除右侧的空格和TAB，最后一种则是去除所有空格和TAB，适当修改代码也可以去除ASCII中的9~13的其他空白符。具体实现如下：
代码语言：javascript复制#include <stdio.h>
int StringStripWS(char* pStr, int type)
{
char* pStrback = pStr;
switch (type)
{
case 1: // 去除左侧空白字符
if (*pStrback == ‘ ‘ *pStrback == ‘t’)
{
while (*pStrback == ‘ ‘ *pStrback == ‘t’) pStrback ;
while (*pStr = *pStrback );
}
break;
case 2: // 去除右侧空白字符
while (*pStr) pStr ;
pStr–;
while (*pStr == ‘ ‘ *pStr == ‘t’)
{
*pStr = ‘ ’;
pStr–;
}
break;
case 3: // 去除所有空白字符
while (*pStr)
{
if (*pStr == ‘ ‘ *pStr == ‘t’)
{
pStr ;
continue;
}
else
{
*pStrback = *pStr ;
}
}
*pStrback = ‘ ’;
break;
}
return 0;
}
int main(int argc, char* argv[])
{
char buf[] = “ my name is dengjia “;
printf(“原始字符串内容为 : –%s–n”, buf);
StringStripWS(buf, 1);
printf(“去除左侧空白符后 : –%s–n”, buf);
StringStripWS(buf, 2);
printf(“去除右侧空白符后 : –%s–n”, buf);
StringStripWS(buf, 3);
printf(“去除全部空白符后 : –%s–n”, buf);
return 0;
}
