iOS常用数据类型互相转换

int to NSString

int age = 10;
NSString *ageStr = [NSString stringWithFormat:@"%d", age];

NSString to int

NSString *ageStr = @"10";
int age = [ageStr intValue];

CGRect to NSString

CGRect rect = CGRectMake(10,20,10,20);
NSString *rectStr = NSStringFromCGRect(rect);