Python脚本在完成前停止

Question

I'm Not sure what I'm doing. Why does this stop after asking for Oustanding balance?

x=raw_input('Outstanding Balance:');
y=raw_input('Annual Interest Rate:');
z=raw_input('Monthly Interest Rate:');
a=(x*z)
b=((y/12)*x)
c=(a-b)
d=(x-c)
print ("Minimum monthly Payment:"+(a));
print ("Interest Paid:"+ (b));
print ("Principal Paid:"+(c));
print ("Remaining balance:"+(d))

Answer 1

raw_input waits for user-input so it would appear to have stopped running. You can type in some input and hit return for it to continue.

Answer 2

You have to convert the input to int before doing arithmetic operations on them. Modify it as shown below.

x=int(raw_input('Outstanding Balance:'))
y=int(raw_input('Annual Interest Rate:'))
z=int(raw_input('Monthly Interest Rate:'))
a=x*z
b=((y/12)*x)
c=(a-b)
d=(x-c)
print ("Minimum monthly Payment:"+str(a))
print ("Interest Paid:"+ str(b))
print ("Principal Paid:"+str(c))

print ("Remaining balance:"+str(d))

Answer 3

raw_input() function return a str object, it can't do calculation

Using the build_in function int() to turn x to int using int(x) and the same as y and z.