字符串处理：//在母串中查找子串，只保留子串之前的数据

char * myStrSubEnd(char *str,const char *dest)

{

char *tmpStr = str;

int inde = 0;

while(*tmpStr != '\0')

{

if((*tmpStr) == (*dest))

    {

if(!strncmp(tmpStr,dest,strlen(dest)))

{

*tmpStr = '\0';

break;

}

}

tmpStr++;

inde++;

}

return str;

}