如何以最快的方式检查我的 nsarray 是否包含另一个 nsarray 元素 IOS

问：

我看过很多答案，但没有得到答案。所以这就是我决定发布一个问题的原因。如果有人能找到有用的链接或答案，将会有所帮助。 这是我的字典数组：

<__NSArrayM 0x283ba04e0>(
{
    failvalues =     (
        "Check 1"
    );
    fieldname = "Check 3";
    fieldvalue =     (
        "Check 1",
        "Check 2"
    );
    showtype = mandatory;
    tagvalue = 0;
},
{
    failvalues =     (
        Fail
    );
    fieldname = "Dropdown 3";
    fieldvalue =     (
        Fail
    );
    showtype = mandatory;
    tagvalue = 1;
},
{
    failvalues =     (
        "Check 1",
        "Check 4"
    );
    fieldname = "Check 4";
    fieldvalue =     (
        "Check 1",
        "Check 2"
    );
    showtype = mandatory;
    tagvalue = 2;
})  

所以我想检查 fieldvalue 是否包含 failvalues。 以下是我尝试过的代码，但它似乎不起作用：

for (int i = 0; i< [arrFields count]; i++) {
            if ([[[arrFields objectAtIndex:i]objectForKey:@"failvalues"] isKindOfClass:[NSArray class]]) {
                if (![[[[arrFields objectAtIndex:i] objectForKey:@"failvalues"] objectAtIndex:0] isEqualToString:@""]) {
                    NSLog(@"Field Values %@",[[arrFields objectAtIndex:i]objectForKey:@"fieldvalue"]);
                   NSArray *failValues = [[arrFields objectAtIndex:i] objectForKey:@"failvalues"];
                    for (int j = 0; j < [failValues count]; j++) {
                        if ([failValues containsObject:[[arrFields objectAtIndex:i]objectForKey:@"fieldvalue"]]) {
                            NSLog(@"Contains %@",[[arrFields objectAtIndex:i]objectForKey:@"fieldvalue"]);
                        } else {
                            NSLog(@"No fail values");
                        }
                    }
                } else {
                    NSLog(@"No Fail Fields");
                }
            } else {
                NSLog(@"Not an array");
            }
        }  

编辑：
这个我已经尝试过了，但如何打破这两个循环

for (int i = 0; i< [arrFields count]; i++) {
            NSArray *fieldValues = [[arrFields objectAtIndex:i]objectForKey:@"fieldvalue"];
            NSArray *failValues = [[arrFields objectAtIndex:i] objectForKey:@"failvalues"];
                if (![[[[arrFields objectAtIndex:i] objectForKey:@"failvalues"] objectAtIndex:0] isEqualToString:@""]) {
                    //NSLog(@"Field Values %@",[[arrFields objectAtIndex:i]objectForKey:@"fieldvalue"]);
                    for(NSString *value in fieldValues){
                        if ([failValues containsObject:value]) {
                            NSLog(@"Contains %@",value);
                            scanStatus = TRUE;
                            return;
                        }
                    }
                } else {
                    NSLog(@"No Fail Fields");
                }
        }

提前致谢！