zqz0012005

JavaScript

//&@cls&start wscript.exe -e:jscript "%~f0"&exit/b
f = "C:\\Documents and Settings\\user\\桌面\\a.txt";
fso = new ActiveXObject('Scripting.FileSystemObject');
nums = fso.OpenTextfile(f).ReadAll().match(/\ba[-.\d]+\b/gi);
s = "Math.max(" + nums.join(',').replace(/a/gi,'') + ")";
WScript.Echo( eval(s) );
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zqz0012005

看来min方法的内部实现可能也不咋地。。。

用排序的方法，未测试和逐个比较时的效率。
内存与CPU占用率很高。

//&@cls&start wscript.exe -e:jscript "%~f0"&exit/b
f = "C:\\Documents and Settings\\user\\桌面\\a.txt";
fso = new ActiveXObject('Scripting.FileSystemObject');
nums = fso.OpenTextfile(f).ReadAll().match(/\ba[-.\d]+\b/gi);
nums = nums.join(',').replace(/a/gi,'').split(',');
nums = nums.sort(function (x,y) {return x-y});
WScript.Echo( nums[0] );
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zqz0012005

没有逐个比较的效率高（当然15楼的方法主要作用是排序）

//&@cls&start wscript.exe -e:jscript "%~f0"&exit/b
f = "C:\\Documents and Settings\\user\\桌面\\a.txt";
fso = new ActiveXObject('Scripting.FileSystemObject');
nums = fso.OpenTextfile(f).ReadAll().match(/\ba[-.\d]+\b/gi);
nums = nums.join(',').replace(/a/gi,'').split(',');
min = parseFloat(nums[0]);
for (i=0;i<nums.length;i++) {
    num = parseFloat(nums[i]);
    if(num<min) min=num;
}
WScript.Echo( min );
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