NSString子字符串

Question

我有这样的字符串

12,23,45,3,12，

我想做的就是获取每个数字，并检查一个数组值。 如何获取每个值作为子字符串进行检查

谢谢

Answer 1

将此字符串拆分为数组。

NSString *string = @"12,23,45,3,12,";
NSArray *array = [string componentsSeparatedByString:@","];

然后，您可以与数组进行比较。

编辑：

根据您的评论，您要检查要在main-other-array中存在的所有字符串值。

NSString *string = @"12,23,45,3,12";
NSArray *array = [string componentsSeparatedByString:@","];
//below is the main-other-array
NSArray *toCheckArray = @[@"124",@"23",@"45",@"3",@"12",@"1000"];

BOOL arrayIsContainedInToCheckArray = YES;

for (NSString *arrayObj in array) {
    if (![toCheckArray containsObject:arrayObj]) {
        arrayIsContainedInToCheckArray = NO;
    }
}
NSLog(@"%@",arrayIsContainedInToCheckArray?@"All exist":@"All doesn't exist");

Answer 2

可能对您有帮助：

NSString *str = @"12,23,45,3,12";
NSArray *strArray = [str componentsSeparatedByString:@","];
NSArray * anotherArray = nil; // have some value
for (NSString * value in strArray)
{
    int intVal = [value integerValue]; // here is your separate value
    for (int i = 0; i < [anotherArray count]; i++) // You can check against another array
    {
        id anotherVal = [anotherArray objectAtIndex:i];

        // Here you can check intVal and anotherVal from another array

    }
}

Answer 3

使用它，它将为您提供帮助。

NSArray *detailArray = [yourString componentsSeparatedByString:@","];