斯威夫特山地车_斯威夫特| 两个数字相加的程序

斯威夫特山地车

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，我们将有一个想法- 如何将两个数字相加并显示为屏幕上的输出 ？

Open XCode terminal and type the following program

打开XCode终端并键入以下程序

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

Output

输出量

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

Explanation:

说明：

import Foundation is a library which is used to access all the functions present that header file.
import Foundation是一个库，用于访问该头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是一种数据类型，以num1作为变量，其值初始化为4 。同样， num2是具有相同数据类型的变量，其值初始化为6 。
Whereas, var ans includes same data type with ans as a variable where the result is stored.
而var ans包含与ans相同的数据类型，而ans作为存储结果的变量。
print function prints the string with the answer on the output screen.
打印功能在输出屏幕上打印带有答案的字符串。
Whereas, "program ended with exit code: 0" at the end shows that there are no further programs to be run.
而结尾处的“程序以退出代码0结尾”表示没有其他程序要运行。
Semicolon ";" is must after every end of the command as similar in C/C++ etc.
分号“;” 在命令的每个结尾之后必须是，类似于C / C ++等。