update 2024/10/3

l.cpp

@@ -2,7 +2,11 @@
 
 using namespace std;
 
+int qian();
+int shi11();
+
 int main(){
+    cout <<"现在是百数计算"<<endl;
     int number,ge,shi,bai;
     cin >>number;
     ge = number%10;
@@ -10,10 +14,23 @@ int main(){
     bai = number / 100;
     number = ge*100 + shi*10 + bai;
     cout << number<<endl;
+    shi11();
     return 0;
 }
+int shi11(){
+    cout <<"现在是十数计算"<<endl;
+    int number,ge,shi;
+    cin >>number;
+    ge = number%10;
+    shi = number /10 ;
+    number = ge*10 + shi;
+    cout <<number<<endl;
+    qian();
+    return 0;
+}    
 
 int qian(){
+    cout <<"现在是千数计算"<<endl;
     int number1,ge1,shi1,bai1,qian1;
     cin >>number1;
     ge1 = number1 % 10;

test.cpp

@@ -1,13 +1,74 @@
-#include<iostream>
+#include <iostream>
-
 using namespace std;
 
-int main(){
+// 函数声明
-    int gc=11,f=25,gp=25;
+void qian1();  // 千位计算
-    f+=gc;
+void shi11();  // 十位计算
-    gp+=f;
+void bai1();   // 百位计算
-    cout <<"格小C岁数:"<<gc<<endl;
+
-    cout <<"格小C爸爸岁数:"<<f<<endl;
+int main() {
-    cout <<"格小C爷爷岁数:"<<gp<<endl;    
+    int in;
-    return 0;
+    cout << "1.千位 2.十位 3.百位" << endl;
-}
+    cin >> in;
+
+    // 使用 '==' 进行条件判断
+    if (in == 1) {
+        qian1();
+    } else if (in == 2) {
+        shi11();
+    } else if (in == 3) {
+        bai1();
+    } else {
+        cout << "无效输入，请输入1、2或3。" << endl; // 处理无效输入
+    }
+
+    return 0; // 返回0表示程序正常结束
+}
+
+void qian1() {
+    cout << "现在是千数计算" << endl;
+    int number1, ge1, shi1, bai1, qian1;
+    cout << "请输入一个四位数: ";
+    cin >> number1;
+
+    // 计算各位数字
+    ge1 = number1 % 10;
+    shi1 = (number1 / 10) % 10;
+    bai1 = (number1 / 100) % 10;
+    qian1 = number1 / 1000;
+
+    // 重新组合数字
+    number1 = ge1 * 1000 + shi1 * 100 + bai1 * 10 + qian1;
+    cout << "重新组合后的数字是: " << number1 << endl;
+}
+
+void shi11() {
+    cout << "现在是十数计算" << endl;
+    int number, ge, shi;
+    cout << "请输入一个两位数: ";
+    cin >> number;
+
+    // 计算各位数字
+    ge = number % 10;
+    shi = number / 10;
+
+    // 重新组合数字
+    number = ge * 10 + shi;
+    cout << "重新组合后的数字是: " << number << endl;
+}
+
+void bai1() {
+    cout << "现在是百数计算" << endl;
+    int number, ge, shi, bai;
+    cout << "请输入一个三位数: ";
+    cin >> number;
+
+    // 计算各位数字
+    ge = number % 10;
+    shi = (number / 10) % 10;
+    bai = number / 100;
+
+    // 重新组合数字
+    number = ge * 100 + shi * 10 + bai;
+    cout << "重新组合后的数字是: " << number << endl;
+}