题解 | #获取指定字符串#
获取指定字符串
http://www.nowcoder.com/practice/4ec56ad04a9a4402a01e50a390a8060a
function captureThreeNumbers(str) {
for(let i = 1 ; i < str.length ; i++){
if(str[i]*2 - 0 === (str[i-1]-0)+(str[i+1]-0)){
return str[i-1]+str[i]+str[i+1]
}
}
return false
}
