string = [[string componentsSeparatedByCharactersInSet:[NSCharacterSet characterSetWithCharactersInString:@"  z/-"]] componentsJoinedByString:@""];

 

 

示例：

NSString *string = @"6225-021 xyz1234/";NSString *afterString = [[string componentsSeparatedByCharactersInSet:[NSCharacterSet characterSetWithCharactersInString:@"  z/-"]] componentsJoinedByString:@""];NSLog(@"before:%@, after:%@", string, afterString);2014-02-28 15:19:12.626 XiaoJiZhuoMi[6188:a0b] before:6225-021 xyz1234/, after:6225021xy1234