寒假【perl語言學習腳本】4.1 4.2 4.3 4.4 4.5

###ex4_1.pl #!/usr/bin/perl -w use strict; sub total { my ( s u m , sum, sum,number); $sum=0; foreach $number (@_){ s u m + = sum+= sum+=number; } KaTeX parse error: Expected 'EOF', got '#' at positio

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