摘要:
1.定义一个字符串a, 截取a 的某一个部分,复制给b, b必须是int型 NSString *a = @"1.2.30"; int b= [[a substringWithRange:NSMakeRange(4,2)] intValue]; NSLog(@"a:%@ \n",a ); NSLog( 阅读全文
摘要:
上传的时候,苹果发送邮件 Non-public API usage: The app references non-public symbols in DUO-LINK 4: _UICreateCGImageFromIOSurface If method names in your source c 阅读全文