摘要：
1）文件读取的3中方法按行读，存入标量while (<FILE>) { print; }按行读，存入数组@array = <FILE>;读入整个文件 ，存入标量$string = do { local $/; <FILE>; };2）读文件实例open (EP,"/etc/passwd");while (<EP>) {chomp;print "I saw $_ in the password file!\n";}3）读写文件实例open(IN,$a) || die "cannot open $a 阅读全文
