add smart contract example

1 files changed, 14 insertions, 0 deletions

diff --git a/examples/counter/counter.sol b/examples/counter/counter.sol
new file mode 100644
index 0000000..c05bf23
--- /dev/null
+++ b/examples/counter/counter.sol
@@ -0,0 +1,14 @@
+pragma solidity ^0.5.10;
+
+contract Counter {
+    uint256 x;
+
+    constructor() public {
+        x = 42;
+    }
+
+    function add(uint256 y) public returns (uint256) {
+        x = x + y;
+        return x;
+    }
+}