void find();
void searchmenu();
void managemenu();
void readOut();
void creatfile();
void readcustomer();
int comptime();
error C2660: 'readcustomer' : function does not take 1 parameters
error C2664: 'readOut' : cannot convert parameter 1 from 'struct Flight [20]' to 'struct node
德玛西亚99
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