data.field.属性赋值

console.log(data.field);

data.field.testname="1,2,3,4";(testname是field中的某个属性比如：name，age，sex等)

console.log(data.field);

第一次console：{interest: "0", open: "1", more: "1", file: "", testname: "3"}第二次console：{interest: "0", open: "1", more: "1", file: "", testname: "1,2,3,4"}