就在main函数上面添加这个浮点数组
float sinb[30]={0.8660, 0.8069, 0.7383, 0.6610, 0.5760, 0.4843,
0.3868, 0.2849, 0.1796, 0.0722, -0.0361, -0.1439,
-0.2501, -0.3533, -0.4524, -0.5462, -0.6335, -0.7135,
-0.7850, -0.8474, -0.8998, -0.9417, -0.9726, -0.9920,
-0.9998, -0.9959, -0.9803, -0.9533, -0.9150, -0.8660};
然后就出现上面图片的错误
