测试修改
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@ -99,8 +99,10 @@ class BandMathCalculator:
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# 【新增安全防护】引入 numpy 命名空间,让 eval 引擎安全识别 nan 与 inf
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import numpy as np
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try:
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# 即使 calc_expression 含有纯字符 nan,也能被 np.nan 安全接管
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result = eval(calc_expression, {"__builtins__": None}, {"nan": np.nan, "inf": np.inf, "np": np})
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# 【P0 修复】包 np.errstate 抑制除零 / 无效操作产生的 RuntimeWarning 洪水
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with np.errstate(divide='ignore', invalid='ignore'):
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# 即使 calc_expression 含有纯字符 nan,也能被 np.nan 安全接管
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result = eval(calc_expression, {"__builtins__": None}, {"nan": np.nan, "inf": np.inf, "np": np})
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except Exception as e:
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print(f"⚠️ 警告:公式计算异常 ({e}),该点赋值为 nan")
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result = np.nan
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@ -117,7 +117,9 @@ class WaterQualityIndexCalculator:
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calc_expr,
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)
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try:
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r = eval(calc_expr, {"__builtins__": None}, {"nan": np.nan, "inf": np.inf, "np": np})
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# 【P0 修复】包 np.errstate 抑制除零 / 无效操作产生的 RuntimeWarning 洪水
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with np.errstate(divide='ignore', invalid='ignore'):
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r = eval(calc_expr, {"__builtins__": None}, {"nan": np.nan, "inf": np.inf, "np": np})
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except Exception:
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r = np.nan
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results.append(r)
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