OC各种数据类型之间的转换方法

NSNumber转NSString:
假设现有一NSNumber的变量A，要转换成NSString类型的B方法如下：NSNumberFormatter* numberFormatter = [[NSNumberFormatteralloc] init];B = [numberFormatter stringFromNumber:A];[numberFormatter release];
nsstring和float 还有int之间的转换
NSString *tempA = @"123";NSString *tempB = @"456";
1，字符串拼接NSString *newString = [NSString stringWithFormat:@"%@%@",tempA,tempB];
2，字符转intint intString = [newString intValue];
3，int转字符NSString *stringInt = [NSString stringWithFormat:@"%d",intString];
4，字符转floatfloat floatString = [newStringfloatValue];
5，float转字符NSString *stringFloat = [NSString stringWithFormat:@"%f",intString];