count: function() { var that = this; var list = this.rbars; var allcount = 0; //被选中个数 var len = list.length; //加入购物车个数 var totalmoney = 0; var discount = 0; for(var i = 0; i < len; i++) { if(list[i].ischecked) { var c = list[i].count; //个数 allcount += parseInt(c); var p = list[i].price; totalmoney += c * p;

This code snippet seems to be a JavaScript function called "count". It starts by creating a variable "that" which is a reference to the current object (presumably the object that this function is a method of). It then creates another variable "list" which is presumably an array of items that this function is meant to count.

The function proceeds to initialize a few more variables: "allcount" (which will keep track of the total number of selected items), "len" (which is the length of the "list" array), "totalmoney" (which will keep track of the total cost of all selected items), and "discount" (which is currently set to 0 but may be used to track any discounts later in the function).

The function then proceeds to loop through each item in the "list" array using a for loop. For each item, it checks if the "ischecked" property is true (presumably indicating that the item has been selected). If it is, the function adds the item's count and price to the "allcount" and "totalmoney" variables, respectively.

The function then ends without returning anything. It is possible that this function is meant to update some UI elements on the page (e.g. displaying the total number of selected items or the total cost), but without more context it is difficult to say for sure.