我希望返回下面的哈希值(每个键)的平均值(grades.txt)
Melotti, Suzanne: 100 100 95 95 92 87
Wayne, Bruce: 85 85 85 75 75 75
Stark, Tony: 92 92 75 79 91 87
Odinson, Thor: 23 12 10 42 50 64
Kane, Kathy: 100 100 100 100 95 95
Rogers, Steven: 92 91 91 90 87 84
Murdock, Matthew: 100 100 100 99 99 98
VonDoom, Victor: 75 75 72 73 74 80
Queen, Olvider: 92 83 74 65 100 66
Hall, Carter: 23 12 10 42 50 64
Xavier, Charles: 100 100 95 95 92 87
到目前为止,我的子程序看起来像这样:
$grade_file = "grades.txt";
open FILE, "<", $grade_file;
sub avg {
while (<$FILE>){
foreach $line ($grade_file){
# some code
return $total
}
}
}