Question

我有一个CSV文件，我已经解析为我的xcode项目。

CSV文件是按随机排序的顺序，我希望最小的数字是第一个。

我不断收到一条警告，指出＆＃34;不兼容的指针类型分配给＆＃39; NSMutableArray *＆＃39;来自＆＃39; NSArray *＆＃39;？我认为这与我试图对常规数组和可变数组进行排序有关吗？这是我解析CSV文件的代码：

NSString *hejhej = [[NSBundle mainBundle] pathForResource:@"2" ofType:@"csv"];
NSString *nyt = [NSString stringWithContentsOfFile:hejhej encoding:NSUTF8StringEncoding error:nil];
NSString *nytnyt = [nyt stringByReplacingOccurrencesOfString:@"\"" withString:@""];


NSMutableArray *row= [[nytnyt componentsSeparatedByString:@"\n,"]mutableCopy];
NSMutableArray *data = [NSMutableArray array];
for(NSString *line in row){
    NSMutableArray *points = [[line componentsSeparatedByString:@","] mutableCopy];

当我将其拖放到我的项目中时，我的文件看起来像这样（这只是测试数据）：

"""00.52.36"",""5"""
,"""01.22.55"",""54"""
,"""01.14.54"",""8"""
,"""02.43.54"",""32"""
,"""03.43.02"",""11"""
,"""03.14.11"",""1"""
,"""06.23.32"",""15"""
,"""06.54.43"",""7"""
,"""07.32.12"",""2"""
,"""07.45.45"",""22"""
,"""08.11.22"",""43"""
,"""08.45.43"",""9"""
,"""09.00.11"",""222"""
,"""09.44.32"",""43"""
,"""10.21.34"",""321"""
,"""10.44.22"",""55"""
,"""11.01.02"",""21"""

我想先按最低值排序。所以它应该切换第2行和第3行，以及第5行和第6行。

我使用此代码对其进行排序，但它不起作用？

NSSortDescriptor *sd = [[NSSortDescriptor alloc] initWithKey:nil ascending:YES];
points = [points sortedArrayUsingDescriptors: @[sd]];

Answer 1

@Try这个csv解析示例项目

https://github.com/ha-minh-vuong/CSVParser

https://github.com/davedelong/CHCSVParser

从CSV文件中排序数组

1 个答案: