斯威夫特山地車

In this program, we will have an idea - how two numbers can be added and displayed as the output on the screen?

在此程序中，我們將有一個想法- 如何將兩個數(shù)字相加并顯示為屏幕上的輸出 ？

Open XCode terminal and type the following program

打開XCode終端并鍵入以下程序

import Foundation var num1 = 4; var num2 = 6; var ans = Int(); ans = num1+num2; print("num1 + num2 = ",ans);

Output

輸出量

num1 + num2 = 10 Program ended with exit code: 0

Explanation:

說明：

• import Foundation is a library which is used to access all the functions present that header file.

  import Foundation是一個庫，用于訪問該頭文件中提供的所有功能。

• var is a data type with num1 as a variable whose value is initialized as 4. Similarly, num2 is a variable with same data type whose value is initialized as 6.

  var是一種數(shù)據(jù)類型，以num1作為變量，其值初始化為4 。 同樣， num2是具有相同數(shù)據(jù)類型的變量，其值初始化為6 。

• Whereas, var ans includes same data type with ans as a variable where the result is stored.

  而var ans包含與ans相同的數(shù)據(jù)類型，而ans作為存儲結(jié)果的變量。

• print function prints the string with the answer on the output screen.

  打印功能在輸出屏幕上打印帶有答案的字符串。

• Whereas, "program ended with exit code: 0" at the end shows that there are no further programs to be run.

  而結(jié)尾處的“程序以退出代碼0結(jié)尾”表示沒有其他程序要運行。

• Semicolon ";" is must after every end of the command as similar in C/C++ etc.

  分號“;” 在命令的每個結(jié)尾之后必須是，類似于C / C ++等。

翻譯自: https://www.includehelp.com/swift/addition-of-two-numbers.aspx

斯威夫特山地車

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