diff --git a/Cargo.lock b/Cargo.lock
index 80ba68f..a95f1d9 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -286,7 +286,7 @@ checksum = "b06a4cde4c0f271a446782e3eff8de789548ce57dbc8eca9292c27f4a42004b4"
 
 [[package]]
 name = "logic_lint"
-version = "0.1.4"
+version = "0.1.5"
 dependencies = [
  "lazy-regex",
  "tag_code",
@@ -301,7 +301,7 @@ checksum = "2dffe52ecf27772e601905b7522cb4ef790d2cc203488bbd0e2fe85fcb74566d"
 
 [[package]]
 name = "mindustry_logic_bang_lang"
-version = "0.15.6"
+version = "0.15.7"
 dependencies = [
  "display_source",
  "logic_lint",
diff --git a/Cargo.toml b/Cargo.toml
index db6f937..bd66c8d 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "mindustry_logic_bang_lang"
-version = "0.15.6"
+version = "0.15.7"
 edition = "2021"
 
 authors = ["A4-Tacks <wdsjxhno1001@163.com>"]
diff --git a/tools/logic_lint/Cargo.toml b/tools/logic_lint/Cargo.toml
index 49ebe0b..f3fbad0 100644
--- a/tools/logic_lint/Cargo.toml
+++ b/tools/logic_lint/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "logic_lint"
-version = "0.1.4"
+version = "0.1.5"
 edition = "2021"
 
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
diff --git a/tools/logic_lint/src/lib.rs b/tools/logic_lint/src/lib.rs
index 1eb7373..2b57f8f 100644
--- a/tools/logic_lint/src/lib.rs
+++ b/tools/logic_lint/src/lib.rs
@@ -1,7 +1,7 @@
 pub mod lints;
 
 use core::fmt;
-use std::{borrow::Cow, collections::HashMap, ops::Deref};
+use std::{borrow::Cow, collections::HashSet, ops::Deref};
 
 use lints::get_useds;
 use tag_code::mdt_logic_split_unwraped;
@@ -61,12 +61,19 @@ impl<'a> Line<'a> {
     pub fn len(&self) -> usize {
         self.args().len()
     }
+
+    pub fn is_empty(&self) -> bool {
+        self.args().is_empty()
+    }
 }
 
 #[derive(Debug)]
 pub struct Source<'a> {
     lines: Vec<Line<'a>>,
-    used_vars: HashMap<&'a str, Vec<Var<'a>>>,
+    /// 行中只读的量表,
+    /// 如果一行同时对一个量进行了读写,
+    /// 那么它将不会出现在这个表中
+    readonly_used_vars: HashSet<&'a str>,
 }
 impl<'a> Source<'a> {
     pub fn from_str(s: &'a str) -> Self {
@@ -77,25 +84,29 @@ impl<'a> Source<'a> {
             .map(|(lineno, line)| Line::from_line(lineno, line))
             .collect::<Vec<_>>();
 
-        let mut used_vars: HashMap<&str, Vec<Var<'_>>> = HashMap::new();
-        lines.iter()
+        let readonly_used_vars = lines.iter()
             .filter_map(get_useds)
-            .flatten()
-            .filter_map(|used| (
-                used.as_read().map(Var::value)?,
-                *used.as_read().unwrap()
-            ).into())
-            .chain(env_assignables.iter()
-                .map(|&var| (var, Var::new_nonlocation(var))))
-            .for_each(|(key, var)| {
-                used_vars.entry(key)
-                    .or_default()
-                    .push(var)
-            });
+            .flat_map(|args| {
+                args.clone()
+                    .into_iter()
+                    .filter(move |arg| {
+                        if arg.method().is_assign() {
+                            return false;
+                        }
+                        !args.iter().any(|x| {
+                            x.method().is_assign()
+                                && x.var().value() == arg.var().value()
+                        })
+                    })
+            })
+            .filter_map(|used| used.as_read()
+                .map(Var::value))
+            .chain(env_assignables.iter().copied())
+            .collect();
 
         Self {
             lines,
-            used_vars,
+            readonly_used_vars,
         }
     }
 
@@ -137,6 +148,10 @@ impl<'a> Source<'a> {
             eprintln!("{}", fmtter)
         }
     }
+
+    pub fn used_vars(&self) -> &HashSet<&'a str> {
+        &self.readonly_used_vars
+    }
 }
 
 #[derive(Debug, Clone, Copy)]
diff --git a/tools/logic_lint/src/lints.rs b/tools/logic_lint/src/lints.rs
index da6578b..29b1942 100644
--- a/tools/logic_lint/src/lints.rs
+++ b/tools/logic_lint/src/lints.rs
@@ -230,17 +230,9 @@ fn check_assign_var<'a>(
         VarType::Var(_) => {
             let mut lints = Vec::new();
             lints.extend(check_var(src, line, var));
-            'x: {
-                if let Some(useds) = src.used_vars.get(var.value()) {
-                    if useds.iter()
-                        .any(|used| used.lineno() != var.lineno())
-                    {
-                        break 'x;
-                    }
-                }
-                if regex_is_match!(r"^_(?:$|[^_])", var.value()) {
-                    break 'x;
-                }
+            if !src.used_vars().contains(var.value())
+                && !regex_is_match!(r"^_(?:$|[^_])", var.value())
+            {
                 lints.push(Lint::new(var, WarningLint::NeverUsed));
             }
             vec_optiter(lints.into())