diff --git a/Test/TestProject3/App/definetest.vp b/Test/DefineTest/App/main.vp
similarity index 88%
rename from Test/TestProject3/App/definetest.vp
rename to Test/DefineTest/App/main.vp
index 7808e43..0bc7b98 100644
--- a/Test/TestProject3/App/definetest.vp
+++ b/Test/DefineTest/App/main.vp
@@ -3,6 +3,17 @@ from t import CInt, CInt32T, CUInt32T, CUInt64T, CFloat64T, CPtr, CChar, CDefine
 import viperlib
 import stdlib
 import platmacro
+import w32.win32console
+import testcheck
+
+
+# ============================================================
+# DefineTest - CDefine 宏 / c.CIf / platmacro 专项测试
+#
+# 从 TestProject3/App/definetest.vp 独立提取。
+# 验证: CDefine 常量、宏函数、c.CIf/c.CIfdef/c.CIfndef、
+#       platmacro 平台宏（输出以 print 为准，人工核对）。
+# ============================================================
 
 
 MAX_SIZE: t.CDefine = 1024
@@ -31,7 +42,6 @@ def CLAMP(x: CInt32T, lo: CInt32T, hi: CInt32T) -> t.CDefine:
         return hi
     return x
 
-
 def test_basic_define() -> CInt:
     print(MAX_SIZE)
     print(MIN_VAL)
@@ -370,53 +380,42 @@ def test_cifdef_complex() -> CInt:
     return 0
 
 
-def define_main() -> CInt:
-    print("=== Basic Define Test ===")
+def main() -> t.CInt:
+    w32.win32console.SetConsoleCP(65001)
+    w32.win32console.SetConsoleOutputCP(65001)
+
+    testcheck.begin("DefineTest: CDefine 宏与 c.CIf 测试")
+
+    testcheck.section("CDefine 基础")
     test_basic_define()
-    print("=== Define Arithmetic Test ===")
     test_define_arithmetic()
-    print("=== Define Conditional Test ===")
     test_define_conditional()
-    print("=== Define Loop Test ===")
     test_define_loop()
-    print("=== Typed Define Test ===")
     test_typed_define()
-    print("=== Define Function (Macro) Test ===")
     test_define_function()
-    print("=== Define Clamp (Macro) Test ===")
     test_define_clamp()
-    print("=== Define String Test ===")
     test_define_string()
-    print("=== Define Combined Test ===")
     test_define_combined()
-    print("=== CIf Basic Test ===")
+
+    testcheck.section("c.CIf")
     test_cif_basic()
-    print("=== CIf Elif Else Test ===")
     test_cif_elif_else()
-    print("=== CIfdef/CIfndef Test ===")
     test_cifdef_cifndef()
-    print("=== CIf Platform Test ===")
     test_cif_platform()
-    print("=== CIf Nested Test ===")
     test_cif_nested()
-    print("=== CIf Expression Test ===")
     test_cif_expr()
-    print("=== Platmacro Platform Test ===")
+
+    testcheck.section("platmacro")
     test_platmacro_platform()
-    print("=== Platmacro Sizes Test ===")
     test_platmacro_sizes()
-    print("=== Platmacro Endian Test ===")
     test_platmacro_endian()
-    print("=== Platmacro Features Test ===")
     test_platmacro_features()
-    print("=== Platmacro Align Test ===")
     test_platmacro_align()
-    print("=== CIfdef Cross-Module Test ===")
+
+    testcheck.section("c.CIfdef 综合")
     test_cifdef_cross_module()
-    print("=== CIfdef Guard Test ===")
     test_cifdef_guard()
-    print("=== CIfdef Undefined Test ===")
     test_cifdef_undefined()
-    print("=== CIfdef Complex Test ===")
     test_cifdef_complex()
-    return 0
+
+    return testcheck.end()
diff --git a/Test/DefineTest/project.json b/Test/DefineTest/project.json
new file mode 100644
index 0000000..be3c469
--- /dev/null
+++ b/Test/DefineTest/project.json
@@ -0,0 +1,29 @@
+{
+    "$schema": "https://raw.githubusercontent.com/TermiNexus/TransPyC/main/schemas/project-schema.json",
+    "name": "DefineTest",
+    "version": "1.0.0",
+    "source_dir": "./App",
+    "build_dir": "./.tpv_build",
+    "compiler": {
+        "cmd": "llc",
+        "flags": ["-filetype=obj", "-relocation-model=pic"]
+    },
+    "linker": {
+        "cmd": "clang++",
+        "flags": ["-Wl,--allow-multiple-definition", "-Wl,--unresolved-symbols=ignore-in-object-files", "-lmsvcrt", "-lucrt", "-lpthread", "-lmingwex", "-lkernel32", "-luser32", "-latomic"],
+        "output": "DefineTest.exe"
+    },
+    "includes": [
+        "../../includes"
+    ],
+    "target": {
+        "triple": "x86_64-pc-windows-gnu",
+        "datalayout": "e-m:w-p270:32:32-p271:32:32-p272:64:64-f80:128-n8:16:32:64-S128"
+    },
+    "options": {
+        "slice_level": 3,
+        "sha1_slice_level": 1,
+        "target": "llvm",
+        "strict_mode": true
+    }
+}
diff --git a/Test/SprintfTest/App/main.vp b/Test/SprintfTest/App/main.vp
index 214e594..e397247 100644
--- a/Test/SprintfTest/App/main.vp
+++ b/Test/SprintfTest/App/main.vp
@@ -168,5 +168,36 @@ def main() -> int:
     viperlib.snprintf(buf, 128, "T10 %a|%.17g", v_pi17, v_pi17)
     testcheck.info(buf)
 
+    # ============================================================
+    # 多整数变参复现（DefineTest test_define_string PAGE= 遗留 bug）:
+    # viperlib.snprintf 3+ 个 int 变参时, 第 2 个 %d 读到垃圾
+    # （va_arg 游标从寄存器区切到溢出区推进错误, 非本次 CIf 引入）
+    # 预期: R1-R3 目前 FAIL, 修复后应全部 PASS
+    # ============================================================
+    testcheck.section("multi-int varargs repro")
+
+    # R1: 3 个常量 int（复现 DefineTest "MAX_SIZE=%d PAGE=%d MASK=0x%x" 模式）
+    viperlib.snprintf(buf, 128, "R1 %d|%d|%d", 1024, 4096, 255)
+    testcheck.info(buf)
+    testcheck.check(string.strcmp(buf, "R1 1024|4096|255") == 0, "R1 3-const-int (1024|4096|255)", "R1 FAIL (第2变参被误读)")
+
+    # R2: 3 个运行时变量 int（排除常量折叠差异）
+    ia: t.CInt = 1024
+    ib: t.CInt = 4096
+    ic: t.CInt = 255
+    viperlib.snprintf(buf, 128, "R2 %d|%d|%d", ia, ib, ic)
+    testcheck.info(buf)
+    testcheck.check(string.strcmp(buf, "R2 1024|4096|255") == 0, "R2 3-var-int (1024|4096|255)", "R2 FAIL (第2变参被误读)")
+
+    # R3: 4 个变参（游标推进进一步暴露）
+    viperlib.snprintf(buf, 128, "R3 %d|%d|%d|%d", 1, 2, 3, 4)
+    testcheck.info(buf)
+    testcheck.check(string.strcmp(buf, "R3 1|2|3|4") == 0, "R3 4-int (1|2|3|4)", "R3 FAIL (变参游标推进错误)")
+
+    # R4: 第 2 个变参为 0（值 0 若被截断读也会暴露）
+    viperlib.snprintf(buf, 128, "R4 %d|%d|%d", 100, 0, 200)
+    testcheck.info(buf)
+    testcheck.check(string.strcmp(buf, "R4 100|0|200") == 0, "R4 middle-zero (100|0|200)", "R4 FAIL (第2变参被误读)")
+
     stdlib.free(buf)
     return 0
diff --git a/Test/TestProject3/App/main.vp b/Test/TestProject3/App/main.vp
index 4423686..d11a1bd 100644
--- a/Test/TestProject3/App/main.vp
+++ b/Test/TestProject3/App/main.vp
@@ -4,7 +4,6 @@ import t, c
 from t import CInt, CPtr, CChar, CInt32T, CUInt64T, CFloat64T, CExport, State
 import viperlib
 import stdlib
-import definetest
 import enumtest
 import mpooltest
 import vectortest
@@ -491,11 +490,6 @@ def main() -> CInt | CExport:
     print(buf)
     testcheck.ok("新语法类型强转测试完成")
 
-    # === CDefine 宏测试 ===
-    testcheck.section("CDefine 宏测试")
-    definetest.define_main()
-    testcheck.ok("CDefine 宏测试完成")
-
     # === Enum 测试 ===
     testcheck.section("Enum 测试")
     enumtest.enum_main()