ios - Objective C 中两个数组中的字符串搜索

Question

我的代码中有这个所有国家的数组。我想通过该数组比较另一个第二个数组，以检查它是否包含国家/地区名称。

例子

NSString *str=@"Afghanistan, Albania, Algeria, American Samoa, Andorra, Angola, Anguilla, Antarctica,"; 
NSArray *arr = [str componentsSeparatedByString:@","];


NSString *myStr = "Toyota, Nissan, Bottle, Albania, Pen, Bag";
NSArray *myarr = [myStr componentsSeparatedByString:@","];

我想比较这个，如果 MyStringArray 中有与 CountryArray[] 匹配的国家/地区名称，则分配给字符串。

Answer 1

int originLength = MyStringArray.count;

NSMutableArray *arr = [NSMutableArray arrayWithArray:MyStringArray];
[arr removeObjectsInArray: CountryArray];
int diff = [arr count];

if (originLength == diff) {
/// all diff
}
else {
}