解决方案:使用文件对象的readinto()方法 示例 import os.path def read_into_buffer(filename): buf=bytearray(os.path.getsize(filename)) with open(filename,'rb') as f: f.readinto(buf) return buf #test case with open('sample.bin','wb') as f: f.write(b'helloworld') buf=read_into_bu...
为了读取数据到一个可变数组中,使用文件对象的readinto() 方法。比如 1 2 3 4 5 6 importos.path defread_into_buffer(filename): buf=bytearray(os.path.getsize(filename)) withopen(filename,'rb') as f: f.readinto(buf) returnbuf 下面是一个演示这个函数使用方法的例子: 1 2 3 4 5 6 7 8...
def read_into_buffer(filename): buf = bytearray(os.path.getsize(filename)) with open(filename, 'rb') as f: f.readinto(buf) return buf
file.close() 关闭文件 file.fileno() 文件描述符 file.flush() 刷新文件的内部缓冲区 file.isatty() 判断file是否是一个类tty设备 file.next() 返回文件的下一行类似于file.readline() file.read() 从文件读取size个字节,当未给定或给定负值的时候,读取剩余的所有字节,饭后作为字符串返回 file.readinto(buf,...
import os.path def read_into_buffer(filename): buf = bytearray(os.path.getsize(filename)) with open(filename, 'rb') as f: f.readinto(buf) return buf >>> with open('sample.bin', 'wb') as f: ... f.write(b'Hello World') ... >>> buf = read_into_buffer('sample.bin')...
pythonbuffer = bytearray(1024) # 创建一个大小为1024的缓冲区 with open('file.txt', 'rb') as f: n = f.readinto(buffer) # 将文件内容读取到缓冲区中,并返回实际读取的字节数 以上是Python中常见的几种文件读取方式,具体使用哪种方式取决于实际需求。 open()函数 open() 是Python 中用于打开文件的...
对于这种情况,我们直接使用文件对象的readinto()就好 import os.path def read_into_buffer(filename): buf = bytearray(os.path.getsize(filename)) with open(filename, 'rb') as f: f.readinto(buf) return buf def read_tobuffer(): buf = bytearray(os.path.getsize('filename')) print(buf)...
write(l1) TypeError: expected a character buffer object #期望字符缓存对象 pickle模块: 代码语言:javascript 代码运行次数:0 运行 AI代码解释 In [58]: import pickle In [61]: help(pickle.dump) Help on function dump in module pickle: dump(obj, file, protocol=None) (END) [root@Node3 tmp]# ...
ctypes.create_string_buffer(0x1000)bytesRead = wintypes.SIZE_T(0)success = kernel32.ReadProcessMemory(h_proc, addr, buffer, len(buffer), ctypes.byref(bytesRead))if success:data = buffer.raw[:bytesRead.value]print("Read {} bytes from LSASS at 0x{:08x}".format(bytesRead.value, addr....
1obj_file=open('1.txt','r+')23obj_file.seek(3)45obj_file.truncate()67#不加则是将指针后面的全部删除89read_lines=obj_file.readlines()1011print read_lines1213结果:1415['123'] #使用默认字典,定义默认类型为list, 代码语言:javascript