方法一NSString *homebrew= @"ImperialIndia Pale Ale (IPA)";//从末尾开始搜索"ia"字符串NSRange range = [homebrew rangeOfString:@"ia"options:NSBackwardsSearch];方法一z方法二NSString *tempDoucment = NSTemporaryDirectory();//获取缓存目录NSCharacterSet *charSet = [NSCharacterSetcharacterSetWithCharact Read More
