* please select menu: balance query (1) and deposits (2), (3) withdrawal, close (3) :
1The balance remaining 10000 yuan
* please select menu: balance query (1) and deposits (2), (3) withdrawal, close (3) : 2
Deposit amount: 5000
The balance remaining: 15000 yuan
* please select menu: balance query (1) and deposits (2), (3) withdrawal, closed (3) : 3
The amount: 25000
Insufficient
* please select menu: balance query (1) and deposits (2), (3) withdrawal, closed (3) : 3
The amount: 3000
The balance remaining: 12000 yuan
* please select menu: balance query (1) and deposits (2), (3) withdrawal, closed (3) : 4
The program to shut down

CodePudding user response:

 switch (query) 
{
Case 1 

Case 2 

Case 3 
//a framework about the menu, just to fill the content inside the 
} 

CodePudding user response:

Logic is simple, read more smoothly, but the code is verbose, can write their own functions to cut code amount

 # include 
using namespace std; 
Int main () {
Int the pre=0;//the amount, the default is 0, to read and write files or other way default 
Int c;//is 
Int TMP. 
While (1) {
Cout<& lt;" * please select menu: balance query (1) and deposits (2), (3) withdrawal, closed (4) : "; 
Cin> c; 
while(! ((c>=1) & amp; & (c<=4))) {//cross-border judgment 
Cout<& lt;" Input error! Please input again: "; 
Cin> c; 
} 
The switch (c) {
Case 1: 
Cout<& lt;" The balance remaining "& lt; break; 
Case 2: 
Cout<& lt;" Deposit: "; 
Cin> TMP.//input amount of deposit 
The pre +=TMP; 
Cout<& lt;" The balance remaining "& lt; break; 
Case 3: 
Cout<& lt;" Withdrawal amount: "; 
Cin> TMP. 
If (tmp> The pre) cout<& lt;" Lack of balance & lt;" The else {
The pre -=TMP; 
Cout<& lt;" The balance remaining: "& lt; } 
break; 
Case 4: 
return 0; 
} 
} 
} 

CodePudding user response:

 # include 
using namespace std; 
Int main () {
Int the pre=0;//the amount, the default is 0, to read and write files or other way default 
Int c;//is 
Int TMP. 
While (1) {
Cout<& lt;" * please select menu: balance query (1) and deposits (2), (3) withdrawal, closed (4) : "; 
Cin> c; 
while(! ((c>=1) & amp; & (c<=4))) {//cross-border judgment 
Cout<& lt;" Input error! Please input again: "; 
Cin> c; 
} 
The switch (c) {
Case 1: 
Cout<& lt;" The balance remaining "& lt; break; 
Case 2: 
Cout<& lt;" Deposit: "; 
Cin> TMP.//input amount of deposit 
The pre +=TMP; 
Cout<& lt;" The balance remaining "& lt; break; 
Case 3: 
Cout<& lt;" Withdrawal amount: "; 
Cin> TMP. 
If (tmp> The pre) cout<& lt;" Lack of balance & lt;" The else {
The pre -=TMP; 
Cout<& lt;" The balance remaining: "& lt; } 
break; 
Case 4: 
Cout<& lt;" A program shut down 
"return 0; 
} 
} 
}