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摘要: c 功能和d相同,区别在于完成删除操作后进入INSERT MODE cc 也是删除当前行,然后进入INSERT MODE 删除每行第一个字符 :%s/^.//g ? 试试 阅读全文
posted @ 2019-06-17 14:37 jimy1 阅读(5343) 评论(2) 推荐(1) 编辑
摘要: grep -n 'sign.*context' associative_array.pl 可以查得到,bash-2.03$ grep -n '*sign.*context' associative_array.pl 查不到? bash-2.03$ grep -n 'sign.*context' as 阅读全文
posted @ 2019-06-17 13:59 jimy1 阅读(673) 评论(0) 推荐(0) 编辑
摘要: 37 print "\n _exercise_6_1 \n"; 38 my %bless_function = ( #hash may be a lexical variable 39 "constructors" => "default_values", 40 "error_handling" = 阅读全文
posted @ 2019-06-17 10:14 jimy1 阅读(385) 评论(0) 推荐(0) 编辑
摘要: 44 my $unpackeing; 45 my $arrow_notation = ''; 46 print "Enter name to query, enter exit to exit:\n"; 47 $arrow_notation = ( chomp( $unpackeing = <STD 阅读全文
posted @ 2019-06-16 21:55 jimy1 阅读(217) 评论(0) 推荐(0) 编辑
摘要: 31 delete $vertical_alignment{$anonymous}; 32 print $vertical_alignment{$anonymous}."\n"; err: Use of uninitialized value in concatenation (.) or stri 阅读全文
posted @ 2019-06-14 17:11 jimy1 阅读(191) 评论(0) 推荐(0) 编辑
摘要: 2. 123 my %vertical_alignment; 124 $vertical_alignment{"subscripting"} = 0; 125 unless($vertical_alignment{"subscripting"}){ 126 print "0\n"; 127 } 12 阅读全文
posted @ 2019-06-14 11:19 jimy1 阅读(223) 评论(0) 推荐(0) 编辑
摘要: 109 my $slice_layouts; 110 my $vertical_assignment; 111 my %map_function_indices = ( 112 "OK_func" => "open_statement", 113 "package_VAR" => "position 阅读全文
posted @ 2019-06-14 10:54 jimy1 阅读(261) 评论(0) 推荐(0) 编辑
摘要: 布尔上下文,这里misreading返回的是来源列表中元素的个数, 列表赋值运算的值将会是来源列表中元素的个数,空列表表示0,如果列表中2个值都是undef,则列表元素个数是1 布尔上下文,这里misreading返回的是来源列表中元素的个数: 103 while( $misreading = (m 阅读全文
posted @ 2019-06-14 10:37 jimy1 阅读(197) 评论(0) 推荐(0) 编辑
摘要: my %map_function = ( 88 "OK_func" => "open_statement", 89 "package_VAR" => "positional", 90 "split_func" => "prototypes", 91 ); 92 my @substr = keys % 阅读全文
posted @ 2019-06-14 10:16 jimy1 阅读(151) 评论(0) 推荐(0) 编辑
摘要: my %map_function = ( 88 "OK_func" => "open_statement", 89 "package_VAR" => "positional", 90 "split_func" => "prototypes", 91 ); 92 my @substr = keys % 阅读全文
posted @ 2019-06-14 10:00 jimy1 阅读(115) 评论(0) 推荐(0) 编辑
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