複習文件操作
print "當前路徑:"
print os.getcwd()
print "判斷是否是一個文件:"
print os.path.isfile(os.getcwd())
print "是否是一個目錄:"
print os.path.isdir(os.getcwd())
print os.system("ls")
print "判斷是否是絕對路徑:"
print os.path.isabs("excp01.py")
print "檢驗給出的路徑是否真地存:"
print os.path.exists("/Users/zhouhaijun")
print "返回一個路徑的目錄名和文件名"
print os.path.split("/Users/zhouhaijun")
print "分離文件名與擴展名"
print os.path.splitext("tmp1.dat")
print "找出某個目錄下所有的文件,並在每個文件中寫入“osTest”"
for root,dis,files in os.walk("/Users/zhouhaijun/Desktop/hhhhh/osTest"):
for name in files:
print name,root,os.path.join(root,name)
with open(os.path.join(root,name),"w") as fp:
fp.write("good! liwen \n 學習walk"
"命令")
print "ok!"
print "如果某個目錄下文件名包含dat後綴名,則把文件後面追加寫一行“被我找到了!"
for root,dirs,files in os.walk("/Users/zhouhaijun/Desktop/hhhhh/osTest"):
for name in files:
suffix = os.path.splitext(os.path.join(root,name))[-1]
if suffix in "dat":
print name
with open(os.path.join(root,name),"a") as fp:
fp.write("\n我找到了!!!")
print "修改內容:"
os.system("cd /Users/zhouhaijun/Desktop/hhhhh/osTest")
print "獲取當前路徑"
os.chdir("/Users/zhouhaijun/Desktop/hhhhh/osTest")
print "獲取當前目錄:"
print os.getcwd()
for line in fileinput.input("dd",inplace = 1):
line = line.replace("walk","\n複習fileinput.input命令")
print line
print "seek函數:"
with open("dd","r+") as f:
old = f.read()
print "內容是:",old
f.seek(2)
f.write("liwen is very googd!!!!")
結果:
當前路徑:
/Users/zhouhaijun/PycharmProjects/Test/PythonTest/dome01
判斷是否是一個文件:
False
是否是一個目錄:
True
Monday.py
init.py
contect_list.txt
excp01.py
one_01.py
phone.dat
test.kpl
tmp1.dat
tmp2.dat
0
判斷是否是絕對路徑:
False
檢驗給出的路徑是否真地存:
True
返回一個路徑的目錄名和文件名
('/Users', 'zhouhaijun')
分離文件名與擴展名
('tmp1', '.dat')
找出某個目錄下所有的文件,並在每個文件中寫入“osTest”
dd /Users/zhouhaijun/Desktop/hhhhh/osTest /Users/zhouhaijun/Desktop/hhhhh/osTest/dd
liwen.dat /Users/zhouhaijun/Desktop/hhhhh/osTest /Users/zhouhaijun/Desktop/hhhhh/osTest/liwen.dat
ok!
如果某個目錄下文件名包含dat後綴名,則把文件後面追加寫一行“被我找到了!
dd
修改內容:
獲取當前路徑
獲取當前目錄:
/Users/zhouhaijun/Desktop/hhhhh/osTest
seek函數:
內容是: good! liwen
學習
複習fileinput.input命令命令
我找到了!!!