Swift Learning Notes (20)--basic operation of arrays

The basic operations of the array in Swift are as follows:

(1) Calculating the length of the array

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(2) Determine if the array is empty

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(3) An array of new elements

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(4) Array merging

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(5) Inserting elements into any position

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(6) Delete an element at any location

(7) Delete the last element of an array

(8) Insert delete operation array cannot be crossed

The following actions are illegal:

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(9) Modify a value in the array

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(10) Bulk substitution of array elements

The number of replacements that can be replaced can be mismatched:

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However, the following actions are illegal: bulk substitution must also be used to assign values to arrays:

(11) Array traversal

For In loop traversal:

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Swift Learning Notes (20)--basic operation of arrays