C语言结构体里的数组出错

Question

#include<stdio.h>
typedef struct Node{
    int A[100];
    int Length;
}StaticTable;
int BinerySearch(StaticTable *Tb1,int K){
    /**/
    }
    return NotFound;
} 
int SequentialSearch(StaticTable *Tb1,int K){
/**/
} 
int main(){
    StaticTable *Tb1;
    for(int i=1;i<=10;i++){
        Tb1->A[i]=5;//执行到这里就会出错，可是我看不出哪里错了，求大佬指点
    }
    Tb1->Length=10;
    printf("%d\t",SequentialSearch(Tb1,36));
    printf("%d",BinerySearch(Tb1,36));
    return 0;
}