基础班day4-上午

.gitignore

@@ -1,88 +1,94 @@
-# ---> C++
+# ---> C++
-# Prerequisites
+# Prerequisites
-*.d
+*.d
-
+
-# Compiled Object files
+# Compiled Object files
-*.slo
+*.slo
-*.lo
+*.lo
-*.o
+*.o
-*.obj
+*.obj
-
+
-# Precompiled Headers
+# Precompiled Headers
-*.gch
+*.gch
-*.pch
+*.pch
-
+
-# Compiled Dynamic libraries
+# Compiled Dynamic libraries
-*.so
+*.so
-*.dylib
+*.dylib
-*.dll
+*.dll
-
+
-# Fortran module files
+# Fortran module files
-*.mod
+*.mod
-*.smod
+*.smod
-
+
-# Compiled Static libraries
+# Compiled Static libraries
-*.lai
+*.lai
-*.la
+*.la
-*.a
+*.a
-*.lib
+*.lib
-
+
-# Executables
+# Executables
-*.exe
+*.exe
-*.out
+*.out
-*.app
+*.app
-
+
-# ---> C
+# ---> C
-# Prerequisites
+# Prerequisites
-*.d
+*.d
-
+
-# Object files
+# Object files
-*.o
+*.o
-*.ko
+*.ko
-*.obj
+*.obj
-*.elf
+*.elf
-
+
-# Linker output
+# Linker output
-*.ilk
+*.ilk
-*.map
+*.map
-*.exp
+*.exp
-
+
-# Precompiled Headers
+# Precompiled Headers
-*.gch
+*.gch
-*.pch
+*.pch
-
+
-# Libraries
+# Libraries
-*.lib
+*.lib
-*.a
+*.a
-*.la
+*.la
-*.lo
+*.lo
-
+
-# Shared objects (inc. Windows DLLs)
+# Shared objects (inc. Windows DLLs)
-*.dll
+*.dll
-*.so
+*.so
-*.so.*
+*.so.*
-*.dylib
+*.dylib
-
+
-# Executables
+# Executables
-*.exe
+*.exe
-*.out
+*.out
-*.app
+*.app
-*.i*86
+*.i*86
-*.x86_64
+*.x86_64
-*.hex
+*.hex
-
+
-# Debug files
+# Debug files
-*.dSYM/
+*.dSYM/
-*.su
+*.su
-*.idb
+*.idb
-*.pdb
+*.pdb
-
+
-# Kernel Module Compile Results
+# Kernel Module Compile Results
-*.mod*
+*.mod*
-*.cmd
+*.cmd
-.tmp_versions/
+.tmp_versions/
-modules.order
+modules.order
-Module.symvers
+Module.symvers
-Mkfile.old
+Mkfile.old
-dkms.conf
+dkms.conf
-
+
+# 自定义
+*/output
+*.i
+*.s
+*.o
+*.swp

day4/d2.cpp

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+#include <bitset> // 用于使用bitset
+#include <iostream>
+
+using namespace std;
+
+int main()
+{
+    cout << "12 = " << 12 << endl;                      // 结果：12
+    cout << "ob01001 = " << bitset<5>(0b01001) << endl; // 结果：9, bitset<8>用于2进制形式输出
+    cout << "062 = " << 062 << endl;                    // 结果: 50
+    cout << "062 = " << oct << 062 << endl;             // 结果: 50, oct 用于8进制形式输出
+    cout << "0x4f = " << hex << 0x4f << endl;           // 结果: 79，hex 用于16进制形式输出
+}

day4/exercise_2.4.1.cpp

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+#include <bitset> // 用于使用bitset
+#include <iostream>
+
+using namespace std;
+
+int main()
+{
+    int x;
+    x = 52;
+    cout << "52 的二进制:" << bitset<8>(x) << endl; // bitset<8>用于2进制形式输出, 8表示8位
+    cout << "52 的八进制:" << oct << x << endl;     // oct 用于8进制形式输出
+    cout << "52 的十六进制:" << hex << x << endl;   // hex 用于16进制形式输出
+}

day4/hello.cpp

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+/* ************************************************************************
+ *       Filename:  hello.cpp
+ *    Description:
+ *        Version:  1.0
+ *        Created:  2023年06月14日 17时37分18秒
+ *       Revision:  none
+ *       Compiler:  gcc
+ *         Author:  YOUR NAME (liubo),
+ *        Company:
+ * ************************************************************************/
+
+#include <iostream>
+
+using namespace std;
+
+int main(int argc, char **argv)
+{
+	// 你好，c++
+	cout << "hi, c++" << endl;
+	return 0;
+}