- [__ NSArrayI replaceObjectAtIndex:withObject:]:发送到实例的无法识别的选择器

NSArray *originalArray = @[@1, @2, @3];
NSMutableArray *mutableArray = [NSMutableArray arrayWithArray:originalArray];
[mutableArray replaceObjectAtIndex:1 withObject:@4];

NSArray *originalArray = @[@1, @2, @3];
id objectToReplace = @4;
NSRange range = NSMakeRange(0, 1); // 替换第一个对象
NSArray *newArray = [originalArray subarrayWithRange:range];
newArray = [newArray arrayByAddingObject:objectToReplace];
newArray = [newArray arrayByAddingObjectsFromArray:[originalArray subarrayWithRange:NSMakeRange(range.location + range.length, originalArray.count - range.location - range.length)]];

let originalArray: [Int] = [1, 2, 3]
let indexToReplace = 1
let newElement = 4
var newArray = originalArray
newArray.withUnsafeMutableBufferPointer { buffer in
    buffer[indexToReplace] = newElement
}