Java | Leetcode Java题解之第385题迷你语法分析器
题目：
题解：
class Solution {
int index = 0;
public NestedInteger deserialize(String s) {
if (s.charAt(index) == '[') {
index++;
NestedInteger ni = new NestedInteger();
while (s.charAt(index) != ']') {
ni.add(deserialize(s));
if (s.charAt(index) == ',') {
index++;
}
}
index++;
return ni;
} else {
boolean negative = false;
if (s.charAt(index) == '-') {
negative = true;
index++;
}
int num = 0;
while (index < s.length() && Character.isDigit(s.charAt(index))) {
num = num * 10 + s.charAt(index) - '0';
index++;
}
if (negative) {
num *= -1;
}
return new NestedInteger(num);
}
}
}