python入门之语句(if语句、while语句、for语句)

python入门之语句，包括if语句、while语句、for语句，供python初学者参考。

//if语句例子
name = 'peirong';

if name == 'peirong':
 print 'this is peirong';
elif name== 'maojun':
 print 'this is maojun';
else:
 print 'others';

//while语句
i = 0;
a = range(10);
while i < a.__len__():
 print i;
 i = i+1;

//for语句
a = range(1,10);
for i in a:
 print i;
else:
 print 'the for loop is over!'

//continue 语句
a = range(1000)
for i in a:
  if i % 3 == 0:
    print 'chuyi 3 yu 0 ';
  elif i % 3 == 1:
    print 'chuyi 3 yu 1 ';
  else:
    continue