文本中含有特殊字符串
//去除特殊字符串 -(NSString *)removeCharactersWithString:(NSString *)string { //1. 由于NSString中有全角符号和半角符号, 因此有些符号要包括全角和半角的 NSCharacterSet *set = [NSCharacterSet characterSetWithCharactersInString:@"@/:;()¥「」"、[]{}#%-*+=_\\|~<>$€^•'@#$%^&*()_+'\""]; // 2.然后调用stringByTrimmingCharactersInSet NSString *trimmedString = [string stringByTrimmingCharactersInSet:set]; //trimmedString就是过滤后的字符串 return trimmedString; } //判断是否含有字符串 - (BOOL)JudgeTheillegalCharacter:(NSString *)content{ //提示 标签不能输入特殊字符 NSString *str =@"^[A-Za-z0-9\\u4e00-\u9fa5]+$"; NSPredicate* emailTest = [NSPredicate predicateWithFormat:@"SELF MATCHES %@", str]; if (![emailTest evaluateWithObject:content]) { return YES; } return NO; }