C语言编程问题:题目计算圆的面积.#include #define PI 3.14159main(){ float r,s;scanf("%f",&r);s=PI*r*r;printf("s=%f\n",s);}这个是错的.错就错在倒数第二行,应该为:printf("面积=%f\n",s);搞错了.为什么我把上面的
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![C语言编程问题:题目计算圆的面积.#include #define PI 3.14159main(){ float r,s;scanf(](/uploads/image/z/4345525-37-5.jpg?t=C%E8%AF%AD%E8%A8%80%E7%BC%96%E7%A8%8B%E9%97%AE%E9%A2%98%EF%BC%9A%E9%A2%98%E7%9B%AE%E8%AE%A1%E7%AE%97%E5%9C%86%E7%9A%84%E9%9D%A2%E7%A7%AF.%23include+%23define+PI+3.14159main%28%29%7B+float+r%2Cs%3Bscanf%28%22%25f%22%2C%26r%29%3Bs%3DPI%2Ar%2Ar%3Bprintf%28%22s%3D%25f%5Cn%22%2Cs%29%3B%7D%E8%BF%99%E4%B8%AA%E6%98%AF%E9%94%99%E7%9A%84.%E9%94%99%E5%B0%B1%E9%94%99%E5%9C%A8%E5%80%92%E6%95%B0%E7%AC%AC%E4%BA%8C%E8%A1%8C%2C%E5%BA%94%E8%AF%A5%E4%B8%BA%EF%BC%9Aprintf%28%22%E9%9D%A2%E7%A7%AF%3D%25f%5Cn%22%2Cs%29%3B%E6%90%9E%E9%94%99%E4%BA%86.%E4%B8%BA%E4%BB%80%E4%B9%88%E6%88%91%E6%8A%8A%E4%B8%8A%E9%9D%A2%E7%9A%84)
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