使用前打印实体模型时，结果是这样的
(lldb) po self.userModel
<SXLoginModel: 0x7fb08bc36aa0>
使用后打印实体模型时，结果是这样的
(lldb) po [self.userModel descriptionShow]
deptName : 南京校区;
lastSigninTime : 2018-07-13 16:16:56;
roleList : (
"<SXRoleModel: 0x600000284060>"
);
sex : 2;
source : 1;
state : 1;
xiaoNengId : liuluqing;
zuoXiId : ;
(lldb) po [self.userModel.roleList.firstObject descriptionShow]
descn : (null);
roleId : 2e34ff21224541d;
roleName : 中端军团长;
state : 1;
代码实现
#import <Foundation/Foundation.h>
#import <UIKit/UIKit.h>
@interface NSObject (SYCategory)
/// 实体模型属性打印
- (NSString *)descriptionShow;
@end
#import "NSObject+SYCategory.h"
#import <objc/runtime.h>
@implementation NSObject (SYCategory)
/// 实体模型属性打印
- (NSString *)descriptionShow
{
NSString *message = @"\n";
unsigned int outCount;
objc_property_t *properties = class_copyPropertyList([self class], &outCount);
for (int i = 0; i < outCount; i ++)
{
objc_property_t property = properties[i];
const char *propName = property_getName(property);
if (propName)
{
NSString *key = [NSString stringWithCString:propName encoding:[NSString defaultCStringEncoding]];
id value = [self valueForKey:key];
message = [message stringByAppendingFormat:@"%@ : %@;\n", key, value];
}
}
free(properties);
return message;
}
@end
