random() 方法可返回介于 0 ~ 1 之间的一个随机数。 这里有几种用法： 1.从数组中随机获取成员 var items = [12,a,9,p,8]; var randomItem = items[Math.floor(Math.random() * items.length)]; 2.生成从0到指定值的数字数组 var numbersArray = [] , max = 100; for( var i=1; numbersArray.push(i++) < max;); // numbers = [1,2,3 … 100] 3.生成随机的字母数字字符串 function radomcharnum(len){ var str = ""; for(;str.length<len;str+=Math.random().toString(36).substr(2)); return str.substr(0,len); } 3.得到指定范围的整数(需要Math.floor()或者parseInt()或者Math.ceil()) var randomNum = Math.random()*5; console.log(parseInt(randomNum));//1 console.log(Math.floor(randomNum));//0 Math.floor(Math.random()*(max-min+1)+min);//max为期待的最大的数，min为最小的数 使用parseInt也是可以的。 from:https://www.cnblogs.com/Catherine001/p/7265597.html
View DetailsDownload VMMap (626 KB) Run now from Sysinternals Live. Introduction VMMap is a process virtual and physical memory analysis utility. It shows a breakdown of a process’s committed virtual memory types as well as the amount of physical memory (working set) assigned by the operating system to those types. Besides graphical representations of memory usage, VMMap also shows summary information and a detailed process memory map. Powerful filtering and refresh capabilities allow you to identify the sources of process memory usage and the memory cost of application features. Besides flexible views […]
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