我正在尝试加载json文件.更新它并将其写回.这是我的尝试,但我收到一个错误：
TypeError: dump() takes at least 2 arguments (1 given)
with open('employees.json') as data_file:
employees = json.load(data_file)
data_file.close
employees['employees'].append({
"id": "2","name": "Rob Croft","key": "0003837852"})
with open('employees.json','w') as data_file:
json.dump(employees)
data_file.close
