字符串中截取特殊字符代码

#define BEGIN_FLAG @"[/" #define END_FLAG @"]"
NSRange range=[EmojiStr rangeOfString: BEGIN_FLAG]; NSRange range1=[EmojiStr rangeOfString: END_FLAG]; NSString *str; //判断当前字符串是否还有表情的标志。 if (range.length>0 && range1.length>0) { str=[EmojiStr substringWithRange:NSMakeRange(range.location+2, range1.location-2-range.location)];
}