怎样取json对应的值

{ "轮胎1":[{"数量": "1","型号": "195 65R15","售价": "1000"}],
"玻璃": [{"数量": "1","型号": "前玻璃","售价": "1000"}],
"修车人": "张三",
"客户名":"张1",
"车牌号":"冀F11111"}