perl中去除从&到+号的所有字符例如:+apple&apple1apple2apple3+pearpear&pear1+orange除去从&到+号的所有字符后应剩下+applepearpearorangeperl -i -pe 's/\&.\+//sg' out.txt这个是我写的,但是out.txt中并没有出现+applepe
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