[英]Pad string with characters
I have我有
$data_dec = 7;
$data_bin = sprintf("%08b",data_dec);
and $data_bin is $data_bin 是
00000111
How do I pad with "X" instead of zeros while maintaining 8-bits?如何在保持 8 位的同时用“X”而不是零填充? Expected data:
预期数据:
XXXXX111
substr( sprintf( "XXXXXXX%b", $n ), -8 )
sprintf( "%8b", $n ) =~ tr/ /X/r
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