Python学习之条件，判断，循环语句学习 原

#!/usr/bin/python
# _*_ coding:UTF-8 _*_ #设置编码
#if语句
a = 10
b = 20
if a==b:
   print "a和b相等"
else:
   print "a和b不相等"

c=10;

if a!=c:
   print "a和c相等"
elif a!=b:
   print "a和b不相等"
else:
   print "其它情况"

#while循环语句
count=1
while count<9:
       print "the count is:",count
       count+=1
else:
       print "the count not less then 9"
print "Good bye!"

#for循环语句
for letter in "Python":
   print '当前字母：', letter

list=[1,2,3,4,5,6]
for num in list:
    if num==3:
           print "现在到3了"
           continue
    if num==5:
           print "现在到5结束了"
           break
    print '当前数字:', num