diff --git "a/src/\347\276\244\345\217\213\346\217\220\344\272\244/\347\254\25401\351\242\230/mq\346\227\245.cpp" "b/src/\347\276\244\345\217\213\346\217\220\344\272\244/\347\254\25401\351\242\230/mq\346\227\245.cpp"
index 7c3a2b1a..d085e8a2 100644
--- "a/src/\347\276\244\345\217\213\346\217\220\344\272\244/\347\254\25401\351\242\230/mq\346\227\245.cpp"
+++ "b/src/\347\276\244\345\217\213\346\217\220\344\272\244/\347\254\25401\351\242\230/mq\346\227\245.cpp"
@@ -1,21 +1,21 @@
-#include <algorithm>
-#include <vector>
-#include <functional>
-#include <iostream>
-template<typename T,typename IT>
-T& operator |(T&& v,const IT& f) 
-{
-    for(auto&& x:v)
-    {
-        f(x);
-    }
-    return v;
-}
-
-int main()
-{
-    std::vector v{1, 2, 3};
-    std::function f{[](const int &i){ std::cout << i << ' '; }};
-    auto f2 = [](int &i){ i *= i; };
-    v | f2 | f;
+#include <algorithm>
+#include <vector>
+#include <functional>
+#include <iostream>
+template<typename T,typename IT>
+T& operator |(T&& v,const IT& f) 
+{
+    for(auto&& x:v)
+    {
+        f(x);
+    }
+    return v;
+}
+
+int main()
+{
+    std::vector v{1, 2, 3};
+    std::function f{[](const int &i){ std::cout << i << ' '; }};
+    auto f2 = [](int &i){ i *= i; };
+    v | f2 | f;
 }
\ No newline at end of file
diff --git "a/src/\347\276\244\345\217\213\346\217\220\344\272\244/\347\254\25402\351\242\230/mq\346\227\245.cpp" "b/src/\347\276\244\345\217\213\346\217\220\344\272\244/\347\254\25402\351\242\230/mq\346\227\245.cpp"
new file mode 100644
index 00000000..8a819fba
--- /dev/null
+++ "b/src/\347\276\244\345\217\213\346\217\220\344\272\244/\347\254\25402\351\242\230/mq\346\227\245.cpp"
@@ -0,0 +1,28 @@
+#include <format>
+#include <functional>
+#include <iostream>
+#include <numbers>
+#include <string>
+#include <string_view>
+using namespace std;
+
+auto operator""_f(const char *s, size_t size)
+{
+    return [=](auto &&...Args)
+    {
+        auto t=string_view(s,size);
+        return vformat(t, make_format_args(Args...));
+    };
+}
+
+int main()
+{
+    std::cout << "乐 :{} *\n"_f(5);
+    std::cout << "乐 :{0} {0} *\n"_f(5);
+    std::cout << "乐 :{:b} *\n"_f(0b01010101);
+    std::cout << "{:*<10}"_f("卢瑟");
+    std::cout << '\n';
+    int n{};
+    std::cin >> n;
+    std::cout << "π：{:.{}f}\n"_f(std::numbers::pi_v<double>, n);
+}