ios - 将 NSArray 组件转换为整数或十进制数

Question

我有一个案例，从应用程序中的 CSV 文件读取的数据必须转换为整数，必须稍后绘制。目前它无法识别何时将数据另存为

int i=[[rows objectAtIndex:0] componentsSeparatedByString:@","];

这是实现的代码。

-(void)connection :(NSURLConnection *) connection didReceiveData:(NSData *)data{

    [self serverConnect];
    response = [[NSString alloc] initWithData:data encoding:NSUTF8StringEncoding];
    //NSLog(response);

    NSString *stripped1 = [response stringByReplacingOccurrencesOfString:@"\r" withString:@""];
    NSArray *rows = [stripped1 componentsSeparatedByString:@"\n"];

    NSArray *components;

    for (int i=0;i<[rows count]; i++) {
         if(i == 0 || [[rows objectAtIndex:i] isEqualToString:@""]){
             continue;
         }
        components = [[rows objectAtIndex:i] componentsSeparatedByString:@","];
        NSLog(@"data1:%@ data2:%@ data3:%@", [components objectAtIndex:0] ,[components objectAtIndex:1],[components objectAtIndex:2]);
    }

data1、data2 和 data3 应该是整数。

非常感谢。

Answer 1

componentsSeparatedByString 返回子字符串，或 NSString 的实例。

         components = [[rows objectAtIndex:i] componentsSeparatedByString:@","];

你只需要获取'components'的每个成员并得到它的intValue，就像这样:

int myInt = [[components objectAtIndex:n] intValue];