摘要:
基本思路是,将key对应的value设置为list,将对应的值append进去。 示例: f=open("a1.txt") ha={} for i in f: i=i.strip().split() print(i[0],i[1]) for k in i[1:]: ha.setdefault(i[0 阅读全文
摘要:
linux 下fasta序列按碱基显色 1 use strict; 2 use warnings; 3 4 my $black = "\033[0;30m"; 5 my $dary_gray = "\033[1;30m"; 6 my $light_gray = "\033[0;37m"; 7 my 阅读全文
摘要:
substr EXPR,OFFSET,LENGTH,REPLACEMENT substr EXPR,OFFSET,LENGTH substr EXPR,OFFSET Extracts a substring out of EXPR and returns it. First character is 阅读全文