pythonµÄһЩ²Ù×÷

# coding=gb2312
# ÓÃÖÐÎÄ×¢ÊÍÇ°Îñ±Ø¼ÓÉϵÚÒ»ÐÐ
# ÇóÄ£ÔËËã·û£¬ºÍCÓïÑÔÒ»Ñù
print 10%9
# ÕûÊýÏà³ýÈÔÈ»ÊÇÕûÊý
print 5/2
# 2ºó¼ÓÉÏ.¾Í±ä³É¸¡µãÊýÁË
print 5/2.
# **±íʾÇóÃÝÔËËã
print 7**4
# º¯ÊýÓÃʱҪ¼ÓÉÏmodule.function
import math
print math.floor(19.8)
# º¯ÊýÃûÒ²¿ÉÒÔ³ÉΪ±äÁ¿
func = math.floor
print func(1.9)
# ¿ÉÒÔÓà + À´Á¬½ÓÁ½¸ö×Ö·û´®
print "abc" + "def"
# Èç¹û¾ä×ÓÖÐÓÐ ’£¬¿ÉÒÔÓÃ\'´úÌæ
print 'He\'s a student'
# »òÕßÓÃË«ÒýºÅ
print "He's a teacher"
# ×Ö·û´®¿ÉÒÔË÷Òý
print "abcdefgf"[3]
# ½«Êý×Ö±ä³É×Ö·û´®µÄÈýÖÖ·½·¨
x = 12345
print 'number:' + str(x)
print 'number:' + repr(x)
print 'number:' + `x`
# ÊäÈëÊý×ֵķ½·¨
x = input('Please Enter a number:')
print x
# ÊäÈë×Ö·û´®µÄ·½·¨
xx = raw_input();
#print xx
# ³ÌÐò½áβ¿ÉÒÔ¼ÓÉÏÕâÒ»ÐУ¬³ÌÐò¾Í²»»áÒ»ÉÁ¶ø¹ýÁË
raw_input('Press Enter to Continue...')