請按照下面的示例進行操作。
的if-else代碼塊:
#!/usr/bin/python
var1 = 100
if var1:
print "1 - Got a true expression value"
print var1
else:
print "1 - Got a false expression value"
print var1
var2 = 0
if var2:
print "2 - Got a true expression value"
print var2
else:
print "2 - Got a false expression value"
print var2
print "Good bye!"
輸出:
1 - Got a true expression value
100
2 - Got a false expression value
0
Good bye!
如果 - elif的,其他的代碼塊:
#!/usr/bin/python
var = 100
if var == 200:
print "1 - Got a true expression value"
print var
elif var == 150:
print "2 - Got a true expression value"
print var2
elif var == 100:
print "3 - Got a true expression value"
print var
else:
print "4 - Got a false expression value"
print var
print "Good bye!"
輸出:
3 - Got a true expression value
100
Good bye!