C语言中if (++C>= 300) 这句需要怎样理解?main() { unsigned int LedNumVal=1,C ; //定义变量 while(1) { if (++C>= 300){ LedNumVal++ ;//每隔300个扫描清零C变量感觉没有赋初值,我需要怎样理解这句:if (++C>= 300)
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![C语言中if (++C>= 300) 这句需要怎样理解?main() { unsigned int LedNumVal=1,C ; //定义变量 while(1) { if (++C>= 300){ LedNumVal++ ;//每隔300个扫描清零C变量感觉没有赋初值,我需要怎样理解这句:if (++C>= 300)](/uploads/image/z/3940638-6-8.jpg?t=C%E8%AF%AD%E8%A8%80%E4%B8%ADif+%28%2B%2BC%3E%3D+300%29+%E8%BF%99%E5%8F%A5%E9%9C%80%E8%A6%81%E6%80%8E%E6%A0%B7%E7%90%86%E8%A7%A3%3Fmain%28%29+%7B+unsigned+int+LedNumVal%3D1%2CC+%3B+%2F%2F%E5%AE%9A%E4%B9%89%E5%8F%98%E9%87%8F+while%281%29+%7B+if+%28%2B%2BC%3E%3D+300%29%7B+LedNumVal%2B%2B+%3B%2F%2F%E6%AF%8F%E9%9A%94300%E4%B8%AA%E6%89%AB%E6%8F%8F%E6%B8%85%E9%9B%B6C%E5%8F%98%E9%87%8F%E6%84%9F%E8%A7%89%E6%B2%A1%E6%9C%89%E8%B5%8B%E5%88%9D%E5%80%BC%2C%E6%88%91%E9%9C%80%E8%A6%81%E6%80%8E%E6%A0%B7%E7%90%86%E8%A7%A3%E8%BF%99%E5%8F%A5%3Aif+%28%2B%2BC%3E%3D+300%29)
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