问题:取出一个复杂json中的一个值
JSON:
{
"success": true,
"content": {
"records": [{
"id": "1551335804967534",
"companyId": "1530581135975019",
"current_amount": 8466.63,
"amountChange": 749.0,
"coinChange": 86.0,
"frozenAmountChange": 0.0,
"frozenCoinChange": 0.0,
"gmtCreate": 1551335805000,
"financeItemCode": "11",
"bizId": "1534752737214452",
"coin_change": 86.0,