单总线芯片DS1307编程总结，总结了单总线编程主要的步骤和注意事项-DS1307 single-chip bus program summary, program summary of the main single bus steps and precautions

keil-c语言编程错误的分析及解决办法，总结keil编译错误和警告，识别错误类型。-keil-c programming language common error analysis and solutions summary keil compiler warnings, identifying the type of error.