php pack与unpack 摸板字符字符含义
format 参数的可能值: a - NUL-padded string A - SPACE-padded string h - Hex string, low nibble first H - Hex string, high nibble first c - signed char C - un
format 参数的可能值: a - NUL-padded string A - SPACE-padded string h - Hex string, low nibble first H - Hex string, high nibble first c - signed char C - un
1. 设置fomat格式,如下: 实现代码如下:# 取前5个字符,跳过4个字符华,再取3个字符 format = '5s 4x 3s' 2. 使用struck.unpack获取子字符串 实现代码如下:import struct print struct.unpack(format, 'Test as
Dim rs, ws, fso, conn, stream, connStr, theFolderSet rs = CreateObject("ADODB.RecordSet")Set stream = CreateObject("ADODB.Stream")Set conn = CreateObj