python - 用于查找面积和周长的 If 语句

Question

print "This is to find the area or perimeter of a rectangle "
print "Do you want to find the area(a) or perimeter(p) of your rectangle?"
a= raw_input(" I want to find the ")
if raw_input = (a)
        print "What is the length of the rectangle?"
        b = int(raw_input("The length of the rectangle is "))
        print "What is the width of the rectangle?"
        c = int(raw_input("The width of the rectangle is "))
        d = (2 * b) + (2 * c)
        print d
if raw_input = (p)
        print "Got it. What is the length of your rectangle?"
        x = int(raw_input("The length of the rectangle is ")) 
        print "What is the width of your rectangle?"
        y = int(raw_input("The width of the rectangle is "))
        z = x * y
        print z

如何编写代码来表示 a 是面积，p 是周长？

Answer 1

这很奇怪，您无法检查 raw_input() 是否有问题。另外，== 用来测试是否相等，= 用来赋值。这就是您想要的:

print "This is to find the area or perimeter of a rectangle "
print "Do you want to find the area(a) or perimeter(p) of your rectangle?"
a= raw_input(" I want to find the ")
if a=='p':
        print "What is the length of the rectangle?"
        b = int(raw_input("The length of the rectangle is "))
        print "What is the width of the rectangle?"
        c = int(raw_input("THe width of the rectangle is "))
        d = (2 * b) + (2 * c)
        print d
elif a=='a':
        print "Got it. What is the length of your rectangle?"
        x = int(raw_input("The length of the rectangle is ")) 
        print "What is the width of your rectangle?"
        y = int(raw_input("The width of the rectangle is "))
        z = x * y
        print z