v 0.35 多线程版本（main_dev.py）选择kaggle部署时报错

[lusuon]

line 125的init方法内，未初始化变量 api_num，导致报错：

Traceback (most recent call last):
  File "~\main_dev.py", line 366, in <module>
    main()
  File "~\main_dev.py", line 291, in main
    init()
  File "~\main_dev.py", line 167, in init
    for i in range(api_num):
                   ^^^^^^^
UnboundLocalError: cannot access local variable 'api_num' where it is not associated with a value

个人的暂时解决方法：初始化该变量 api_num = 1

[fkiliver]

确实，kaggle没有添加多api支持，没有对api_num赋值。已修复