{代码...} Actual Result：<function f at 0x7f31e65d05f0> has no __doc__, it's a bad habit.<function g at 0x7f31e65d0668> : I have a doc .f() Do somethingg() Do something Expect
Activty嵌套多个Fragment，然后Fragment里面再嵌套多个Fragment，外层的Fragment切换得快了或者横竖屏切换就会报错：java.lang.IllegalStateException: Activity has been destroyedat android.support.v4.app.Fr...
