我是Perl的新手,但我听说它对于解析文件很有用,所以我想过给它一个旋转.
我有一个文本文件,其中包含以下示例信息：
High school is used in some parts of the world,particularly in Scotland,North America and Oceania to describe an institution that provides all or part of secondary education. The term "high school" originated in Scotland with the world's oldest being the Royal High School (Edinburgh) in 1505. The Royal High School was used as a model for the first public high school in the United States,the English High School founded in Boston,Massachusetts,in 1821. The precise stage of schooling provided by a high school differs from country to country,and may vary within the same jurisdiction. In all of New Zealand and Malaysia along with parts of Australia and Canada,high school is synonymous with secondary school,and encompasses the entire secondary stage of education. ====================================== Grade1 87.43% Grade2 84.30% Grade3 83.00% =====================================
我想解析文件,只获取数字信息.一世
看着正则表达式,我想我会使用类似的东西
if (m/^%/) {
do something
}
else {
skip the line
}
但是,我真正想做的是跟踪变量
留下并将数值存储在该变量中.所以,之后
解析文件,我真的想拥有以下变量
将％值存储在其中.原因是,我想
创建不同等级的饼图/条形图.
Grade1 = 87.43
Grade2 = 84.30
…
你能提出我应该看的方法吗？
解决方法
@H_502_42@ 你需要一个正则表达式.像下面这样的东西应该工作while (<>) {
/(Grade[0-9]+)\s*([0-9]+\.[0-9]+)/;
$op{$1} = $2;
}