//判断roadTitleLab.text 是否含有qingjoin
if([roadTitleLab.text rangeOfString:@"qingjoin"].location !=NSNotFound)//_roaldSearchText
{
NSLog(@"yes");
}
else
{
NSLog(@"no");
}
转载自http://www.cnblogs.com/qingjoin/archive/2012/12/14/2817690.html