uncaught exception 'CALayerInvalidGeometry', reason: 'CALayer bounds contains NaN: [nan 0; 600 300]'
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原因
我遇到的是,存在出数为0的情况时,所得结果为NaN。
解决方法
添加判断,处理错误
if(isnan(ecg)){ //isnan为系统函数,判断结果是否为NaN //特殊处理 ecg = 0.0;}else{ //正常情况,不做处理}
0 0
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