C语言，求助下面这句编程怎么理解？其中0x80，0xc0什么意思？（已附上显示程序）

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C语言，求助下面这句编程怎么理解？其中0x80，0xc0什么意思？（已附上显示程序）,第1张

0x80在计算机内部表示为1000 0000，汉字编码区别于其他编码的标志就是汉字编码的最高位是1，0xc0是指十六进制。你附的程序里write_com(),write_data()两个函数的具体代码也没给，怎么判断？

error:stray'\243' in program

错误：程序中的243

例句

1、the principle and method to deduce wavefront error due to stray light fringe pattern

引起波面测量误差的干涉场杂纹消除的原理和方法；

2、In the tissue impedance spectroscopy measurements, four-electrode method are normally used. A measurement error caused by stray capacitance between lines of drive electrode and receive electrode is not a trivial problem.

在生物组织复阻抗谱测量中，通常采用四电极测量方法，相邻驱动电极和测量电极导联线间存在寄生杂散电容，本文研究了这一杂散电容对组织复阻抗实部和虚部测量精度的影响。

3、Pre-launch calibration of the FY-2B's visible channels has much error due to the influence of stray light.

FY2B由于杂散光的影响，其可见光通道的发射前定标存在较大误差。

4、The testing results show that the linearity is good, the uniformity error is within 7 ‰, the stray light is smaller than 1 μ W, the repeatability error is within 7 ‰, and the long stability error is within 8 ‰.

测试结果表明：线性比较好，均匀性误差在7‰以内，杂光小于1μW，重复性误差小于7‰，长期稳定性误差小于8‰。

5、The PST of stray light includes the influence of system assemble error, and reflects the real capacity of stray light suppression.

光学系统杂光指标PST的测量，包含了系统各种安装误差的影响，体现了系统杂光抑制的真实水平。