docs: 添加博客园文章内容

docs/content/calculation-test-code.md

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+---
+title: 运算速度测试代码
+date: 2025-02-11T20:55:04Z
+lastmod: 2025-02-20T22:58:29Z
+tags: [测试,代码片段]
+---
+
+# 运算速度测试代码
+
+#### C
+
+```c
+#include <stdio.h>
+#include <math.h>
+#include <time.h>
+int main()
+{
+  long tStart = time(NULL);
+  long tEnd = tStart + 10;
+  long tNow = 0;
+  long count = 0;
+  do {
+    double num = sqrt(count);
+    tNow = time(NULL);
+    count++;
+  } while (tNow < tEnd);
+  printf("%ld", count);
+  return 0;
+}
+```
+
+#### Java
+
+```java
+public class CalcTest {
+    public static void main(String[] args) {
+        long dMillis = 2000;
+        long dSeconds = 0;
+        long tStart = System.currentTimeMillis();
+        long tEnd = 0;
+        long tCurrent = 0;
+        long count = 0;
+
+        if (args.length == 1) {
+            try {
+                dMillis = Long.parseLong(args[0]);
+            } catch (Exception err) {
+                System.out.println("[Error] invalid duration: " + args[0]);
+                return;
+            }
+        }
+
+        dSeconds = dMillis / 1000;
+        tEnd = tStart + dMillis;
+
+        System.out.println("[Set] duration = " + dSeconds + "s");
+
+        do {
+            double num = Math.sqrt(count);
+            count++;
+            tCurrent = System.currentTimeMillis();
+        } while (tCurrent < tEnd);
+
+        System.out.println("[Result] " + count + " loops in " + dSeconds + "s");
+    }
+}
+```