'commit'

C++课程/第十课逻辑表达式和条件表达式/p74_3.cpp

@@ -0,0 +1,30 @@
+#include<iostream>
+#include<iomanip>
+using namespace std;
+int main(){
+  int wei;
+  cin>>wei;
+  if(wei<=10){
+    cout<<setiosflags(ios::fixed)
+        <<setprecision(2)
+        <<0.8*wei+0.2
+        <<endl;
+  }
+  else if(wei>10 && wei<=20){
+    cout<<setiosflags(ios::fixed)
+        <<setprecision(2)
+        <<8+0.75*(wei-10)+0.2
+        <<endl;
+  }
+  else if(wei>20 && wei<=30){
+    cout<<setiosflags(ios::fixed)
+        <<setprecision(2)
+        <<8+7.5+0.7*(wei-20)+0.2
+        <<endl;
+  }
+  else{
+    cout<<"<EFBFBD>޷<EFBFBD><EFBFBD>ʼ<EFBFBD>"<<endl;
+  }
+  return 0;
+}
+