比较两个数组 [英] Comparing Two Arrays

问题描述

我有两个NSArrays，我想要做的是比较两个包含字符串的数组，找到相似之处，再创建第一个数组，所以它们没有相似之处。

只是一个例子。

两个数组：

  NSArray * arrayOne = [NSArray arrayWithObjects：@TD1，@TD2，@TD3，nil]; 
 NSArray * arrayTwo = [NSArray arrayWithObjects：@Blah，@String，@TD2，nil]; 
  

结果：

 code> NSArray * arrayOne = [NSArray arrayWithObjects：@TD1，@TD2，@TD3，nil]; 
 
 NSArray * arrayOneCopy = [NSArray arrayWithObjects：@TD1，@TD3，nil]; 
 NSArray * arrayTwo = [NSArray arrayWithObjects：@Blah，@String，@TD2，nil]; 
  
 
 
解决方案
 
  NSMutableArray * arrayOneCopy = [NSMutableArray arrayWithArray：arrayOne]; 
 [arrayOneCopy removeObjectsInArray：arrayTwo]; 
  
 
I have two NSArrays, what I'm looking to do is to compare two arrays which contain strings, find the similarities and create the first array again but so they have no similarities.

Just for an example something like.

Two Arrays:
NSArray *arrayOne = [NSArray arrayWithObjects:@"TD1", @"TD2", @"TD3", nil];
NSArray *arrayTwo = [NSArray arrayWithObjects:@"Blah", @"String", @"TD2", nil];
Outcome:
NSArray *arrayOne = [NSArray arrayWithObjects:@"TD1", @"TD2", @"TD3", nil];

NSArray *arrayOneCopy = [NSArray arrayWithObjects:@"TD1", @"TD3", nil];
NSArray *arrayTwo = [NSArray arrayWithObjects:@"Blah", @"String", @"TD2", nil];

解决方案
NSMutableArray *arrayOneCopy = [NSMutableArray arrayWithArray:arrayOne];
[arrayOneCopy removeObjectsInArray:arrayTwo];


                        
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