如何显示while循环中输入的每个课程?C#
我不确定如何显示用户输入的每个课程。仅显示最后输入的课程。我在想什么如何显示while循环中输入的每个课程?C#,c#,C#,我不确定如何显示用户输入的每个课程。仅显示最后输入的课程。我在想什么 while (quit != "0") { //get user data Console.WriteLine("Enter course # {0}:", counter); course = Console.ReadLine(); Console.WriteLine("Enter grade value of 1-4 # {0}:", counter); grade = Conve
while (quit != "0")
{
//get user data
Console.WriteLine("Enter course # {0}:", counter);
course = Console.ReadLine();
Console.WriteLine("Enter grade value of 1-4 # {0}:", counter);
grade = Convert.ToInt32 (Console.ReadLine());
Console.WriteLine("Enter credit hours from 1-3 # {0}:",counter);
creditHours = Convert.ToInt32 (Console.ReadLine());
//calculate grade * creditHours and store in gradePoints
gradePoints = grade * creditHours;
//running total of credit hours and grades
totalGradePoints += gradePoints;
totalCreditHours += creditHours;
Console.WriteLine("Press '0' to quit or any key to continue.");
quit = Console.ReadLine();
counter++;// adds one to counter
}//end while
// calculate gpa
double GPA = totalGradePoints / totalCreditHours;
//display course(s) credit hours and gpa
Console.WriteLine("Course(s): {0}", course);
Console.WriteLine("Credit hours: {0}",totalCreditHours);
Console.WriteLine("GPA: {0:n2}",GPA);
你得走了
Console.WriteLine("Course(s): {0}", course);
在while
循环中。仅在循环结束后才显示它。这就是你看到最后一道菜的原因
如果不想立即显示它们,则将课程存储到集合中,并在之后迭代集合,而循环并显示它们:
var courses = new List<string>();
while(...)
{
...
course = Console.ReadLine();
courses.Add(course);
...
}
foreach(var c in courses)
Console.WriteLine(c);
var课程=新列表();
而(…)
{
...
course=Console.ReadLine();
课程。添加(课程);
...
}
foreach(课程中的var c)
控制台写入线(c);
您正在循环中设置变量,因此循环的每次迭代都会覆盖相同的变量
相反,尝试使用一个对象或数组,这两个数组都可以保存多个值,并考虑为数据创建<代码>类< /代码>,因为它们都是关联的:
class CourseData
{
public string Course { get; set; }
public int Grade { get; set; }
public nt CreditHours { get; set; }
public int GradePoints { get { reutrn Grade * CreditHours; } }
}
步骤1:将课程存储在集合中…或Console.WriteLine(“课程:{0}”,String.Join(“,”,courses.ToArray())代码>我觉得这很有帮助,但我没有代表投票,所以谢谢。