import ast code = "a = ~rsp;b = 8;c = a + b;a = ~c;" tree = ast.parse(code) for node in ast.walk(tree): if isinstance(node, ast.BinOp) and isinstance(node.op, ast.Add): if isinstance(node.left, ast.Name) and node.left.id == "a": if isinstance(node.right, ast.Name) and node.right.id == "b": node.parent.value = ast.BinOp( left=ast.Name(id="rsp", ctx=ast.Load()), op=ast.Sub(), right=ast.Num(n=8) ) optimized_code = ast.unparse(tree) print(optimized_code) 执行错误，请修改

在代码中，我发现第6行的语句 `a = ~c;` 没有以语句的形式结束，需要加上分号 `;`。此外，第10行的 `node.parent` 并不是一个属性，需要使用 `ast.fix_missing_locations` 函数将新节点添加到正确的位置上。修改后的代码如下：

import ast

code = "a = ~rsp;b = 8;c = a    b;a = ~c;"
tree = ast.parse(code)

for node in ast.walk(tree):
    if isinstance(node, ast.BinOp) and isinstance(node.op, ast.Add):
        if isinstance(node.left, ast.Name) and node.left.id == "a":
            if isinstance(node.right, ast.Name) and node.right.id == "b":
                new_node = ast.BinOp(
                    left=ast.Name(id="rsp", ctx=ast.Load()),
                    op=ast.Sub(),
                    right=ast.Num(n=8)
                )
                ast.copy_location(new_node, node.parent)
                node.parent = new_node
                ast.fix_missing_locations(node.parent)

optimized_code = ast.unparse(tree)
print(optimized_code)