Swift Notes 5

Definition of the array:

var Beijing line Line 10 = ["National Library", "BA Gou"]

Beijing Line Line 10. Count//or the length of the array

If Beijing line Line 10. IsEmpty {

println ("The array is empty");

}

Add a value to the array,

Beijing Line Line 10, append ("Agricultural exhibition Hall");

Beijing Line Line 10 + = ["Sun Palace", "Sanyuan Bridge", "Liang Qiao"]

Beijing Line Line 10 [0] = "Tuanjiehu"

Beijing Line Line 10. Insert ("Call Home", atindex:1)//Insert new value replace old value

To remove a value from an array

Beijing Line Line 10. Removeatindex (1)

Beijing Line Line 10. Removerlast ()//Remove Last

Iterating through an array

For station name in Beijing line Line 10 {

printf ("\ (station name)")

}

Sometimes we want to see the index value corresponding to each station name.

For (ordinal, station name) in enumerate (Beijing line Line 10) {

printf ("The Name of the" (ordinal) is: \ (station name) ")//String interpolation

}

Swift Notes 5