[backend]将testdata/下的测例替换为了赛方测试用例，更新了测试脚本

testdata/functional/97_matrix_sub.sy

@@ -0,0 +1,72 @@
+int N;
+int M;
+int L;
+
+int sub(float a0[],float a1[], float a2[],float b0[],float b1[],float b2[],float c0[],float c1[],float c2[])
+{
+    int i;
+    i=0;
+    while(i<3)
+    {
+        c0[i]=a0[i]-b0[i];
+        c1[i]=a1[i]-b1[i];
+        c2[i]=a2[i]-b2[i];
+        i=i+1;
+    } 
+
+    return 0;
+
+}
+
+int main()
+{
+    N=3;
+    M=3;
+    L=3;
+    float a0[3], a1[3], a2[3], b0[3], b1[3], b2[3], c0[6], c1[3], c2[3];
+    int i;
+    i=0;
+    while(i<3)
+    {
+        a0[i]=i;
+        a1[i]=i;
+        a2[i]=i;
+        b0[i]=i;
+        b1[i]=i;
+        b2[i]=i;
+        i=i+1;
+    }
+    i=sub( a0, a1,  a2, b0, b1, b2, c0, c1, c2);
+    int x;
+    while(i<3)
+    {
+        x = c0[i];
+        putint(x);
+       
+        i=i+1;
+    }
+    x = 10;
+    i=0;
+    putch(x);
+    while(i<3)
+    {
+        x = c1[i];
+        putint(x);
+       
+        i=i+1;
+    }
+    x = 10;
+    i=0;
+    putch(x);
+    while(i<3)
+    {
+        x = c2[i];
+        putint(x);
+       
+        i=i+1;
+    }
+    x =10;
+    putch(x);
+
+    return 0;
+}