跪求！如何把forEach循环改成for循环

Question

如何把下面forEach循环改成for循环：v.cityData.forEach(function(e){letname=e.name.substr(0,1);letlen=e.cities.length;v.anchorMap[name]=y;y-=titleHeight+len*itemHeight;});

Answer 1

for(leti=0;ilete=v.cityData[i]
letname=e.name.substr(0,1);
letlen=e.cities.length;
v.anchorMap[name]=y;
y-=titleHeight+len*itemHeight;
}
回答完这个问题之后有种难以言表的心情。。。
                            

Answer 2

for(leti=0,iLen=v.cityData.length;ilete=v.cityData[i];
letname=e.name.substr(0,1);
letlen=e.cities.length;
v.anchorMap[name]=y;
y-=titleHeight+len*itemHeight;
}