Python If / Else语句

Question

当涉及到python时，我是一个新手。

但是我无法获得这段代码。 我花了很长时间试图在各种书籍和问题站点中找出问题所在，所以我来到了这里。

我的python idle（Python GUI） （我正在使用的软件）每当我使用Else语句时都会不断出现语法错误...

a = str
print("What is Your name")
a = input()
b = str
print("Oh Hello " + a)
print("How Are You Feeling")
b = input()
if b == "Happy":
    print("Glad to hear that":
          else:
          print("Oh im sorry to hear that")

抱歉，这是与计算机的对话，但是我从来没有选择主题，所以我无济于事...

请帮忙

Answer 1

缩进在Python中很重要。 在else必须缩进量是相同的if与它配对：

a = str
print("What is Your name")
a = input()
b = str
print("Oh Hello " + a)
print("How Are You Feeling")
b = input()
if b == "Happy":
    print("Glad to hear that")   # Added the missing ) here as well
else:
    print("Oh im sorry to hear that")

Answer 2

else语句的缩进必须与其相应的if相同。 在打印末尾您也缺少a ) ，并且在打印末尾不需要: 。

if b == "Happy":
    print("Glad to hear that")  # <== missing that last ), you don't need that :
else:  # <== indentation was wrong here
    print("Oh im sorry to hear that")