IOS開發之判斷兩個數組中數據是否相同實例詳解

前言：

工作中遇到的問題，這裡記錄下，也許能幫助到大家

實例代碼：

NSArray *array1 = [NSArray arrayWithObjects:@"a", @"b", @"c", nil nil]; 
NSArray *array2 = [NSArray arrayWithObjects:@"b", @"a", @"c", nil nil]; 
bool bol = false; 
 
//創建倆新的數組 
NSMutableArray *oldArr = [NSMutableArray arrayWithArray:array1]; 
NSMutableArray *newArr = [NSMutableArray arrayWithArray:array2]; 
 
//對數組1排序。 
[oldArr sortUsingComparator:^NSComparisonResult(id obj1, id obj2){ 
  return obj1 > obj2; 
}]; 

////上個排序好像不起作用，應采用下面這個
[oldArr sortUsingComparator:^NSComparisonResult(id obj1, id obj2){return [obj1 localizedStandardCompare: obj2];}];
 
//對數組2排序。 
[newArr sortUsingComparator:^NSComparisonResult(id obj1, id obj2){ 
   return obj1 > obj2; 
   }]; 
////上個排序好像不起作用，應采用下面這個
[newArr sortUsingComparator:^NSComparisonResult(id obj1, id obj2){return [obj1 localizedStandardCompare: obj2];}];

 
if (newArr.count == oldArr.count) { 
   
  bol = true; 
  for (int16_t i = 0; i < oldArr.count; i++) { 
     
    id c1 = [oldArr objectAtIndex:i]; 
    id newc = [newArr objectAtIndex:i]; 
    
    if (![newc isEqualToString:c1];) { 
     bol = false; 
     break; 
     } 
   } 
 } 
 
if (bol) {  
  NSLog(@"兩個數組的內容相同！");  
}  
else {  
  NSLog(@"兩個數組的內容不相同！");  
} 

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