【正文】 ,21,21,16,19,19,19,19,19,19,16,16, 14,14,16,16,19,19,21,21,16,16,16,16,16,16,16,16, 16,16,16,21,21,21,16,19,19,19,19,19,19,16,16,14, 14,16,16,19,19,21,19,16,16,16,16,16,16,14,12,12, 12,12,14,14,16,16,14,14,14,14,14,14,14,12,9,9, 9,12,14,14,16,16,19,19,19,21,19,19,16,14, 12,12, 12,14,14,14,16,16,14,14,14,14,14,12,12,12,9,9, 9,12,14,16,16,19,21,21,21,21,21,21,21, 36,36, 16,16,16,16,21,21,21,16,19,19,19,19,19,19,16,16, 14,14,16,16,19,19,21,19,16,16,16,16,16,16,16,16, 16,16,16,21,21,21,16,19,19,19,19,19,19,16,16,14, 14,14,16,19,19,21,19,16,16,16,16,16,16,14,12,12, 12,12,14,14,16,16,14,14,14,14,14,14,14,12,9,9, 9,12,14,14,16,16,19,19,19,21,19,19,16,14,12,12, 12,14,14,14,16,16,14,14,14,14,14,12,12,12,9,9, 9,12,14,16,16,19,21,21,21,21,21,21,21,14,14,14, 單片機(jī)原理及系統(tǒng)課程設(shè)計報告 13 14,14,16,16,14,12,12,12,12,12,9,9,12,14,14,14, 14,14,16,16,14,12,12,9,9,12,9,12, 14,14,14,14,14,16,16,14,12,12,12,12,12,9,12, 14,14,14,14,14,19,19,16,16,16,16,16,16,16,16, 9,9,9,9,9,9,9,14,14,14,14,14,14,16,14, 12,12,12,12,12,12,14,9,9,9,9,9,9,7,7,9,9,9,9, 9,7,7,4,4,4,4,4,7,7, 2,2,2,2,2,2,2,4,4,4,4,4,4,4, 9,9,9,9,9,9,9,9,14,14,14,14,14,14,16,16, 12,12,12,12,12,12,14,14,9,9,9,9,12,9, 7,7,7,7,7,7,9,9,4,4,4,2,4,4,7,7, 9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9, }。 //啟動定時器 0 ET0 = 1。i++) { if(music1[i] == 36) //停頓音處理 { TR0=0。 P2=~P2。amp。 P2=0x18。i300) { d1=~d1。 } if(i300amp。 } if(i400amp。 } if(i500amp。 } if(i600) 單片機(jī)原理及系統(tǒng)課程設(shè)計報告 15 { P0=_cror_(P0,1)。 } } } if(K1==1) //判斷 K1 開關(guān)是否處于開啟的位置（實則重復(fù)音樂 ， 否則停止） { EA=0。 } } } timer0() interrupt 1 //中斷子程序 { TL0=tl0_f。 while(1) { while(1) {if(K1==1) break。P2=0xff。m++) { P0=0x03。b5。 單片機(jī)原理及系統(tǒng)課程設(shè)計報告 16 P2=0x81。 P2=0x24。 P2=0x00。 P2=0x18。 P2=0x42。 P2=0x00。b8。 delay_1ms(500)。 P2=0xff。 delay_1ms(500)。 P2=0x00。s level of internationalization. The policy will also bring direct economic revenue, Li said. Chengdu has many cultural legaci es and is also a paradise for panda lovers with the world39。s public security bureau shows some 100 foreign visitors enjoyed the 72hour policy by the end of March, most of them from the United States, the United Kingdom and Germany. Chengdu also reported robust growth in its overall tourist industry last year. Official statistics show that it received some 150 million tourists last year, an increase of 28 percent from 2021. Around million came from abroad, an increase of 12 percent. Total revenue from tour ism surpassed 133 billion yuan ($). During his visit to Kazakhstan in September, Chinese President Xi Jinping proposed that China and Central Asia join hands to build a Silk Road economic belt to boost cooperation. The idea has been widely echoed in Central Asian countries, being an encouraging blueprint for Chinese areas along the Silk Road that has linked Asia and Europe for more than 2,000 years. In the next three weeks, China Daily reporters will travel through the belt in China and in Kazakhstan, Uzbekistan and Turkey. They will show the progress and expectations of the countries, businesses and peoples on the route. Shaanxi the start of the ancient Silk Road has positioned itself as the new starting point for the development of the Silk Road Economic Belt, which will strengthen China