rangeOfString的使用
不必一个字符一个字符的匹配。
+ (void)openUrl:(NSString*)link
{
if(0 == [link length])
return;
NSRange range = [link rangeOfString:@"target=_blank"];
if(range.location != NSNotFound)
{
[[UIApplication sharedApplication] openURL:[NSURL URLWithString:link]];
}
}