Objective-C实现判断IP4地址是否有效算法
以下是一个使用Objective-C实现判断IPv4地址是否有效的算法的示例代码:
#import <Foundation/Foundation.h>
BOOL isValidIPv4Address(NSString *ipAddress) {
NSString *ipv4Pattern = @
#import <Foundation/Foundation.h>
BOOL isValidIPv4Address(NSString *ipAddress) {
NSString *ipv4Pattern = @