Writing a function with multiple arguments
In the last exercise, you wrote a function that returns the first letter of a student's grades. However, you would like a function that can be used to extract any of the student's grades.
For each student, you have text data that looks like this:
grades = "XXXX"
Where the letters "XXXX" are the grades for the student in mathematics, history, science, and drama, respectively.
A single string of grades named mygrades and an array of grade strings named grades_array is available in your environment.
本练习是课程的一部分
Introduction to Julia
交互式实操练习
通过完成这段示例代码来试试这个练习。
# Create the get_gradenumber function
____ ____(____)
____ ____
____