javascript string.charAt(index) 返回字符串中对应索引的字符

string = "125"

string.charAt(2) ---------> "5"

string = "Hello"

string.charAt(1) ---------------> "e"

获取积分，把对应的积分图片显示出来

var score_img = "";

var score = "{{score}}";

for(i=0;i<score.length;i++){

      score_img += "<img src='/static/images/activity/act_national/score_num/" + score.charAt(i) + ".png'/>";

}

document.getElementById("score").innerHTML = score_img