编写程序void OLED_ShowChinese(u8 x,u8 y,u8 chr,u8 size,u8 mode)实现在oled上显示汉字

这是一个基于Arduino平台的OLED显示屏库，可以在OLED上显示汉字：

#include <Wire.h>
#include <Adafruit_GFX.h>
#include <Adafruit_SSD1306.h>

#define OLED_ADDR 0x3C
#define OLED_RESET -1
Adafruit_SSD1306 display(OLED_RESET);

// 字库数组
const unsigned char F8X16[] PROGMEM = {
  0x10,0x10,0x10,0x10,0x10,0x10,0x10,0x10,0x10,0x10,0x10,0x10,0x10,0x10,0x10,0x10,
  0x18,0x18,0x18,0x18,0x18,0x18,0x18,0x18,0x18,0x18,0x18,0x18,0x18,0x18,0x18,0x18,
  0x20,0x20,0x20,0x20,0x20,0x20,0x20,0x20,0x20,0x20,0x20,0x20,0x20,0x20,0x20,0x20,
  0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,
  0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
  0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
  0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
  0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,/*" ",0*/
  0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
  0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
  0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
  0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
  0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
  0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
  0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
  0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,/*" ",1*/
};

void OLED_Init() {
  display.begin(SSD1306_SWITCHCAPVCC, OLED_ADDR);
  display.clearDisplay();
  display.display();
}

void OLED_ShowChinese(unsigned char x, unsigned char y, unsigned char chr, unsigned char size, unsigned char mode) {
  unsigned char c = 0, i = 0;
  unsigned char ch = chr - ' ';
  unsigned char chi = ch * 16;
  unsigned char x0 = x, y0 = y;

  if (size == 16) {
    for (i = 0; i < 16; i++) {
      c = pgm_read_byte(&F8X16[chi + i]);
      for (unsigned char j = 0; j < 8; j++) {
        if ((c >> (7 - j)) & 0x01) {
          display.drawPixel(x + j, y + i, 1);
        }
        else {
          if (mode) display.drawPixel(x + j, y + i, 0);
        }
      }
    }
  }

  display.display();
}

void setup() {
  OLED_Init();
}

void loop() {
  OLED_ShowChinese(0, 0, '中', 16, 1);
  delay(5000);
  OLED_ShowChinese(20, 0, '国', 16, 1);
  delay(5000);
}

这个程序中使用了F8X16字库，可以在16x16的区域中显示汉字。可以根据实际情况修改字库和代码。