stage1 重构测试且成功00-05

stage1/test14_assignment.spl

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+/* ===== 模块7：高级特性 =====
+ * test14_assignment — 复合赋值
+ * 难度：2/5
+ * 验证点：+= -= *= /= %= &= |= ^= <<= >>=
+ */
+fn main() i32 {
+    var x: i32 = 10;
+
+    /* += */
+    x += 5;
+    if x != 15 { ret 1; }
+
+    /* -= */
+    x -= 3;
+    if x != 12 { ret 2; }
+
+    /* *= */
+    x *= 2;
+    if x != 24 { ret 3; }
+
+    /* /= */
+    x /= 4;
+    if x != 6 { ret 4; }
+
+    /* %= */
+    var y: i32 = 17;
+    y %= 5;
+    if y != 2 { ret 5; }
+
+    /* &= */
+    var a: i32 = 0xFF;
+    a &= 0x0F;
+    if a != 0x0F { ret 6; }
+
+    /* |= */
+    var b: i32 = 0xF0;
+    b |= 0x0F;
+    if b != 0xFF { ret 7; }
+
+    /* ^= */
+    var c: i32 = 0xFF;
+    c ^= 0xF0;
+    if c != 0x0F { ret 8; }
+
+    /* <<= */
+    var d: i32 = 1;
+    d <<= 4;
+    if d != 16 { ret 9; }
+
+    /* >>= */
+    var e: i32 = 64;
+    e >>= 3;
+    if e != 8 { ret 10; }
+
+    ret 0;
+}