与时俱进

摘要： @interface NSString (MyExtensions) - (NSString *) md5; @end @implementation NSString (MyExtensions) - (NSString *) md5 { const char *cStr = [self UTF8String]; unsigned char result[16]; CC_MD5( cStr, strlen(cStr), result ); // This is the md5 call return [NSString stringWithFormat: @"%02x... 阅读全文