学习到了 常用函数 system

C16-并发/parallel/signal/star.c

@@ -0,0 +1,26 @@
+#include <signal.h>
+#include <stdlib.h>
+#include <unistd.h>
+
+static void int_hander(int s)
+{
+    write(1, "!", 1);
+}
+
+int main(int argc, char **argv)
+{
+    int i;
+
+    //* ignore SIGINT
+    // signal(SIGINT, SIG_IGN);
+
+    signal(SIGINT, int_hander);
+
+    for (i = 0; i < 10; i++)
+    {
+        write(1, "*", 1);
+        sleep(1);
+    }
+
+    exit(0);
+}