iOS之由身份证号返回性别

该博文出自：http://www.cnblogs.com/yang-guang-girl/p/5683454.html

- (void)viewDidLoad
{[super viewDidLoad];// Do any additional setup after loading the view.NSString *sex=[self sexStrFromIdentityCard:@"139876456767892345"];NSLog(@"--sex--%@",sex);}
//由身份证号返回为性别
-(NSString *)sexStrFromIdentityCard:(NSString *)numberStr{NSString *result = nil;BOOL isAllNumber = YES;if([numberStr length]<17)return result;//**截取第17为性别识别符NSString *fontNumer = [numberStr substringWithRange:NSMakeRange(16, 1)];//**检测是否是数字;const char *str = [fontNumer UTF8String];const char *p = str;while (*p!='\0') {if(!(*p>='0'&&*p<='9'))isAllNumber = NO;p++;}if(!isAllNumber)return result;int sexNumber = [fontNumer integerValue];if(sexNumber%2==1)result = @"男";///result = @"M";else if (sexNumber%2==0)result = @"女";//result = @"F";return result;}

输出

2015-10-22 10:33:38.518 由身份证号码返回性别[2356:74542] --sex--女