my $n = shift;#取参数第一个值 my $minus = $n < 0 ? '-' : '';#条件判断然后赋值- or '' $n = abs($n);#取绝对值 $n = int( ( $n + .05 ) * 10 ) / 10; #对n处理 $n .= '.0' unless $n =~ /\./;# $n .= '0' if substr( $n, ( length($n) - 1 ), ...
BSO211P-VB一款2个P-Channel沟道SOP8的MOSFET晶体管参数介绍与应用说明 2025-01-14 10:56:58 积分:1 vmwear-windowsServer2016部署docker 2025-01-14 09:07:23 积分:1 BSH108-VB一款SOT23封装N-Channel场效应MOS管 2025-01-14 08:17:59 积分:1