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Experiment/graph/Exp7/FibonacciSum.mermaid
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22
Experiment/graph/Exp7/FibonacciSum.mermaid
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flowchart TD
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A[开始] --> B[初始化 sum=0]
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B --> C[创建 FileReader 读取 in.txt]
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C --> D[创建 StringBuilder number]
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D --> E{"reader.read() 返回 ch"}
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E -- != -1 --> F{"Character.isDigit(ch)?"}
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F -- 是 --> G["number.append(ch 转字符)"]
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F -- 否 --> H{ch 是 ',' 或 '\n'?}
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H -- 是 --> I{number 是否为空?}
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I -- 否 --> J["sum += Integer.parseInt(number)"]
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J --> K["number.setLength(0)"]
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K --> E
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H -- 否 --> E
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E -- == -1 --> L{"number.length()>0?"}
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L -- 是 --> M["sum += Integer.parseInt(number)"]
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L -- 否 --> N[跳过]
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M --> N
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N --> O[关闭 FileReader]
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O --> P[创建 FileWriter 写入 sum.txt]
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P --> Q[将 sum 转为字符串写入]
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Q --> R[关闭 FileWriter]
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R --> S[程序结束]
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