python learning 1-basic syntax

python.py
#!/usr/bin/env python
#coding:UTF-8
print('this liucx,s first python code!')
if True:
  print 'ture'
else:
  print 'false'
'''
This is an annotation test
Hey, let's learn something
See if it's fun.
'''
#raw_input('\n\nPress the enter key to exit.')

import sys;
x='runb';
sys.stdout.write(x+'\t\n') #Newline output

a='1';
b='2';
# newline output
print a;
print b;

# output without wrapping
print a,;
print b,;

# output without wrapping
print a,b;

#print sys.argv[1];

#The following is an if statement with input under myself, find the right
c=1;#sys.argv[1];
if c=='1':
   print 'yes';
else :
   print 'A parameter needs to be output';
#I'm very happy, the above is written correctly, I didn't read the documentation. continue. . . . . .
def testFunction(param):
  print(param+10);
  return;
#below is a for loop

fruits = ['banana', 'apple',  'mango']
for f in fruits:  
  if(f=='mango'):
    break;
  print(f);
print("End of for loop");

'''
String manipulation
'''
str="abcdefghijklmnopwxyzxyz";
str2="1234567890";
print(str[1]);
print(str2[2:4]);

#Method operation
testFunction(20);
#Object operation
import object
o1=object.add(100);
print(o1);
#Object operation end----------------------------
#keyboard input
in1=raw_input("Please enter a sentence:");
print in1;
in2=input("Please enter an expression:");#You can enter an expression
print in2;

#Open file file object = open(file_name [, access_mode][, buffering])
f1=open("object.py");
print "File name: ",f1.name;
print "Is it closed",f1.closed;
print "Access mode:",f1.mode;
print f1.read();
f1.close();
print "Is it closed",f1.closed;

try:
 f2=open("testFile","a");
 f2.write("This is a test content");
except IOerror:
 print "Error opening the file, maybe the file does not exist";
else:
 print "File written successfully";
 f2.close();

object.pyc

def add(a):
 return a+2;