diff --git a/.idea/workspace.xml b/.idea/workspace.xml
index fea9db863e335d4b70d632da49cb78dcb28591bc..494e6394613b15af79a4cc3729146a401800c882 100644
--- a/.idea/workspace.xml
+++ b/.idea/workspace.xml
@@ -2,6 +2,7 @@
 <project version="4">
   <component name="ChangeListManager">
     <list default="true" id="34e32fa1-0595-45b0-acb0-186f150c9334" name="Default" comment="">
+      <change beforePath="$PROJECT_DIR$/.idea/workspace.xml" afterPath="$PROJECT_DIR$/.idea/workspace.xml" />
       <change beforePath="$PROJECT_DIR$/Psmrcddup.py" afterPath="$PROJECT_DIR$/Psmrcddup.py" />
       <change beforePath="$PROJECT_DIR$/utils/PSM_help.py" afterPath="$PROJECT_DIR$/utils/PSM_help.py" />
     </list>
@@ -18,11 +19,34 @@
     <SUITE FILE_PATH="coverage/PrimarySchoolMath$PrintPreview.coverage" NAME="PrintPreview Coverage Results" MODIFIED="1540812288196" SOURCE_PROVIDER="com.intellij.coverage.DefaultCoverageFileProvider" RUNNER="coverage.py" COVERAGE_BY_TEST_ENABLED="true" COVERAGE_TRACING_ENABLED="false" WORKING_DIRECTORY="$PROJECT_DIR$" />
     <SUITE FILE_PATH="coverage/PrimarySchoolMath$text.coverage" NAME="text Coverage Results" MODIFIED="1541337268307" SOURCE_PROVIDER="com.intellij.coverage.DefaultCoverageFileProvider" RUNNER="coverage.py" COVERAGE_BY_TEST_ENABLED="true" COVERAGE_TRACING_ENABLED="false" WORKING_DIRECTORY="$PROJECT_DIR$" />
     <SUITE FILE_PATH="coverage/PrimarySchoolMath$App.coverage" NAME="App Coverage Results" MODIFIED="1541818052166" SOURCE_PROVIDER="com.intellij.coverage.DefaultCoverageFileProvider" RUNNER="coverage.py" COVERAGE_BY_TEST_ENABLED="true" COVERAGE_TRACING_ENABLED="false" WORKING_DIRECTORY="$PROJECT_DIR$" />
-    <SUITE FILE_PATH="coverage/PrimarySchoolMath$PSM_help.coverage" NAME="PSM_help Coverage Results" MODIFIED="1542077071350" SOURCE_PROVIDER="com.intellij.coverage.DefaultCoverageFileProvider" RUNNER="coverage.py" COVERAGE_BY_TEST_ENABLED="true" COVERAGE_TRACING_ENABLED="false" WORKING_DIRECTORY="$PROJECT_DIR$/utils" />
-    <SUITE FILE_PATH="coverage/PrimarySchoolMath$Psm_rcddup.coverage" NAME="Psm-rcddup Coverage Results" MODIFIED="1542078435089" SOURCE_PROVIDER="com.intellij.coverage.DefaultCoverageFileProvider" RUNNER="coverage.py" COVERAGE_BY_TEST_ENABLED="true" COVERAGE_TRACING_ENABLED="false" WORKING_DIRECTORY="$PROJECT_DIR$" />
+    <SUITE FILE_PATH="coverage/PrimarySchoolMath$PSM_help.coverage" NAME="PSM_help Coverage Results" MODIFIED="1542098949345" SOURCE_PROVIDER="com.intellij.coverage.DefaultCoverageFileProvider" RUNNER="coverage.py" COVERAGE_BY_TEST_ENABLED="true" COVERAGE_TRACING_ENABLED="false" WORKING_DIRECTORY="$PROJECT_DIR$/utils" />
+    <SUITE FILE_PATH="coverage/PrimarySchoolMath$Psm_rcddup.coverage" NAME="Psm-rcddup Coverage Results" MODIFIED="1542108835377" SOURCE_PROVIDER="com.intellij.coverage.DefaultCoverageFileProvider" RUNNER="coverage.py" COVERAGE_BY_TEST_ENABLED="true" COVERAGE_TRACING_ENABLED="false" WORKING_DIRECTORY="$PROJECT_DIR$" />
   </component>
   <component name="FileEditorManager">
-    <leaf SIDE_TABS_SIZE_LIMIT_KEY="375" />
+    <leaf>
+      <file leaf-file-name="PSM_help.py" pinned="false" current-in-tab="true">
+        <entry file="file://$PROJECT_DIR$/utils/PSM_help.py">
+          <provider selected="true" editor-type-id="text-editor">
+            <state relative-caret-position="386">
+              <caret line="77" column="47" lean-forward="true" selection-start-line="77" selection-start-column="47" selection-end-line="77" selection-end-column="47" />
+              <folding>
+                <element signature="e#285#298#0" expanded="true" />
+                <element signature="e#4985#5200#0" expanded="false" />
+                <element signature="e#5505#5714#0" expanded="false" />
+                <element signature="e#5751#5959#0" expanded="false" />
+                <element signature="e#6003#6356#0" expanded="false" />
+                <element signature="e#7177#7370#0" expanded="false" />
+                <element signature="e#7402#7538#0" expanded="false" />
+                <element signature="e#8599#8737#0" expanded="false" />
+                <element signature="e#9182#9382#0" expanded="false" />
+                <element signature="e#9886#9985#0" expanded="false" />
+                <element signature="e#10013#10161#0" expanded="false" />
+              </folding>
+            </state>
+          </provider>
+        </entry>
+      </file>
+    </leaf>
   </component>
   <component name="FileTemplateManagerImpl">
     <option name="RECENT_TEMPLATES">
@@ -54,6 +78,7 @@
       <find>getRandomSymbols</find>
       <find>print(</find>
       <find>print</find>
+      <find>raise</find>
     </findStrings>
   </component>
   <component name="Git.Settings">
@@ -107,8 +132,6 @@
       <foldersAlwaysOnTop value="true" />
     </navigator>
     <panes>
-      <pane id="Scope" />
-      <pane id="Scratches" />
       <pane id="ProjectPane">
         <subPane>
           <expand>
@@ -116,10 +139,17 @@
               <item name="PrimarySchoolMath" type="b2602c69:ProjectViewProjectNode" />
               <item name="PrimarySchoolMath" type="462c0819:PsiDirectoryNode" />
             </path>
+            <path>
+              <item name="PrimarySchoolMath" type="b2602c69:ProjectViewProjectNode" />
+              <item name="PrimarySchoolMath" type="462c0819:PsiDirectoryNode" />
+              <item name="utils" type="462c0819:PsiDirectoryNode" />
+            </path>
           </expand>
           <select />
         </subPane>
       </pane>
+      <pane id="Scratches" />
+      <pane id="Scope" />
     </panes>
   </component>
   <component name="PropertiesComponent">
@@ -286,7 +316,7 @@
       <window_info id="Docker" active="false" anchor="bottom" auto_hide="false" internal_type="DOCKED" type="DOCKED" visible="false" show_stripe_button="false" weight="0.33" sideWeight="0.5" order="7" side_tool="false" content_ui="tabs" />
       <window_info id="Database" active="false" anchor="right" auto_hide="false" internal_type="DOCKED" type="DOCKED" visible="false" show_stripe_button="true" weight="0.33" sideWeight="0.5" order="3" side_tool="false" content_ui="tabs" />
       <window_info id="SciView" active="false" anchor="right" auto_hide="false" internal_type="DOCKED" type="DOCKED" visible="false" show_stripe_button="true" weight="0.32972583" sideWeight="0.5" order="3" side_tool="false" content_ui="tabs" />
-      <window_info id="Structure" active="false" anchor="left" auto_hide="false" internal_type="DOCKED" type="DOCKED" visible="true" show_stripe_button="true" weight="0.10825295" sideWeight="0.5" order="1" side_tool="false" content_ui="tabs" />
+      <window_info id="Structure" active="false" anchor="left" auto_hide="false" internal_type="DOCKED" type="DOCKED" visible="true" show_stripe_button="true" weight="0.21597" sideWeight="0.5" order="1" side_tool="false" content_ui="tabs" />
       <window_info id="Favorites" active="false" anchor="left" auto_hide="false" internal_type="DOCKED" type="DOCKED" visible="false" show_stripe_button="true" weight="0.33" sideWeight="0.5" order="2" side_tool="true" content_ui="tabs" />
       <window_info id="Debug" active="false" anchor="bottom" auto_hide="false" internal_type="DOCKED" type="DOCKED" visible="false" show_stripe_button="true" weight="0.39954337" sideWeight="0.5" order="3" side_tool="false" content_ui="tabs" />
       <window_info id="Cvs" active="false" anchor="bottom" auto_hide="false" internal_type="DOCKED" type="DOCKED" visible="false" show_stripe_button="true" weight="0.25" sideWeight="0.5" order="4" side_tool="false" content_ui="tabs" />
@@ -334,16 +364,16 @@
           <caret line="54" column="24" lean-forward="true" selection-start-line="54" selection-start-column="24" selection-end-line="54" selection-end-column="24" />
           <folding>
             <element signature="e#285#298#0" expanded="true" />
-            <element signature="e#5074#5289#0" expanded="false" />
-            <element signature="e#5594#5803#0" expanded="false" />
-            <element signature="e#5840#6048#0" expanded="false" />
-            <element signature="e#6092#6445#0" expanded="false" />
-            <element signature="e#7266#7459#0" expanded="false" />
-            <element signature="e#7491#7627#0" expanded="false" />
-            <element signature="e#8688#8826#0" expanded="false" />
-            <element signature="e#9271#9471#0" expanded="false" />
-            <element signature="e#9975#10074#0" expanded="false" />
-            <element signature="e#10102#10250#0" expanded="false" />
+            <element signature="e#4985#5200#0" expanded="false" />
+            <element signature="e#5505#5714#0" expanded="false" />
+            <element signature="e#5751#5959#0" expanded="false" />
+            <element signature="e#6003#6356#0" expanded="false" />
+            <element signature="e#7177#7370#0" expanded="false" />
+            <element signature="e#7402#7538#0" expanded="false" />
+            <element signature="e#8599#8737#0" expanded="false" />
+            <element signature="e#9182#9382#0" expanded="false" />
+            <element signature="e#9886#9985#0" expanded="false" />
+            <element signature="e#10013#10161#0" expanded="false" />
           </folding>
         </state>
       </provider>
@@ -627,7 +657,6 @@
       <provider selected="true" editor-type-id="text-editor">
         <state relative-caret-position="216">
           <caret line="12" column="32" lean-forward="true" selection-start-line="12" selection-start-column="32" selection-end-line="12" selection-end-column="32" />
-          <folding />
         </state>
       </provider>
     </entry>
@@ -639,32 +668,32 @@
         </state>
       </provider>
     </entry>
-    <entry file="file://$PROJECT_DIR$/utils/PSM_help.py">
+    <entry file="file://$PROJECT_DIR$/Psmrcddup.py">
       <provider selected="true" editor-type-id="text-editor">
-        <state relative-caret-position="225">
-          <caret line="326" column="35" lean-forward="false" selection-start-line="326" selection-start-column="35" selection-end-line="326" selection-end-column="35" />
+        <state relative-caret-position="345">
+          <caret line="202" column="14" lean-forward="false" selection-start-line="202" selection-start-column="14" selection-end-line="202" selection-end-column="14" />
           <folding>
-            <element signature="e#285#298#0" expanded="true" />
-            <element signature="e#5074#5289#0" expanded="false" />
-            <element signature="e#5594#5803#0" expanded="false" />
-            <element signature="e#5840#6048#0" expanded="false" />
-            <element signature="e#6092#6445#0" expanded="false" />
-            <element signature="e#7266#7459#0" expanded="false" />
-            <element signature="e#7491#7627#0" expanded="false" />
-            <element signature="e#8688#8826#0" expanded="false" />
-            <element signature="e#9271#9471#0" expanded="false" />
-            <element signature="e#9975#10074#0" expanded="false" />
-            <element signature="e#10102#10250#0" expanded="false" />
+            <element signature="e#703#716#0" expanded="true" />
           </folding>
         </state>
       </provider>
     </entry>
-    <entry file="file://$PROJECT_DIR$/Psmrcddup.py">
+    <entry file="file://$PROJECT_DIR$/utils/PSM_help.py">
       <provider selected="true" editor-type-id="text-editor">
-        <state relative-caret-position="223">
-          <caret line="203" column="12" lean-forward="false" selection-start-line="203" selection-start-column="12" selection-end-line="203" selection-end-column="12" />
+        <state relative-caret-position="386">
+          <caret line="77" column="47" lean-forward="true" selection-start-line="77" selection-start-column="47" selection-end-line="77" selection-end-column="47" />
           <folding>
-            <element signature="e#703#716#0" expanded="true" />
+            <element signature="e#285#298#0" expanded="true" />
+            <element signature="e#4985#5200#0" expanded="false" />
+            <element signature="e#5505#5714#0" expanded="false" />
+            <element signature="e#5751#5959#0" expanded="false" />
+            <element signature="e#6003#6356#0" expanded="false" />
+            <element signature="e#7177#7370#0" expanded="false" />
+            <element signature="e#7402#7538#0" expanded="false" />
+            <element signature="e#8599#8737#0" expanded="false" />
+            <element signature="e#9182#9382#0" expanded="false" />
+            <element signature="e#9886#9985#0" expanded="false" />
+            <element signature="e#10013#10161#0" expanded="false" />
           </folding>
         </state>
       </provider>
diff --git a/Psmrcddup.py b/Psmrcddup.py
index bfcedaa41b79cc9c24092c9945607a2d5db8a7e0..0dfc74b2d2cc1234f8541e206d242f184e1b4667 100644
--- a/Psmrcddup.py
+++ b/Psmrcddup.py
@@ -200,9 +200,9 @@ def main():
     multlist = {"n1": [1, 9], "n2": [1, 9], "n3": [1, 9], "n4": [1, 9], "result": [21, 81],}  # 乘法设置
     divlist = {"n1": [1, 81], "n2": [1, 9], "n3": [1, 9], "n4": [1, 9], "result": [1, 9],}  # 除法设置
 
-    signum = 2
-    step = 2
-    is_result = 1
+    signum = 1
+    step = 1
+    is_result = 0
     number = 20
 
 
diff --git a/utils/PSM_help.py b/utils/PSM_help.py
index 67a9f1a9a7c470cce8110aa637396001b2d2788b..fe71bf735b2453aac7cb40119cab571838ecb6b3 100644
--- a/utils/PSM_help.py
+++ b/utils/PSM_help.py
@@ -51,11 +51,7 @@ def getTwoStep(formulas, result, symbols, carry, abdication, is_bracket, is_resu
 
             if (isItem(s2, tp, c, result, carry, abdication)):  # 判断第二步运算结果
                 rs = eval("{}{}{}{}{}".format(a, getSymbol(s1), b, getSymbol(s2), c, ))
-                if is_result == 0:
-                    return "{}{}{}{}{}=".format(a, repSymbol(s1), b, repSymbol(s2), c, )
-                elif is_result == 1:
-                    st = "{}{}{}{}{}={}".format(a, repSymbol(s1), b, repSymbol(s2), c, rs)
-                    return getRandomItem(st)
+                return getXStepstr("{}{}{}{}{}=".format(a, repSymbol(s1), b, repSymbol(s2), c, ),str(rs),is_result)
             else:
                 return False
         else:
@@ -67,11 +63,8 @@ def getTwoStep(formulas, result, symbols, carry, abdication, is_bracket, is_resu
                 tp = eval(str(formulas[k]) + getSymbol(syms[k]) + str(formulas[k + 1]))  # 括号内的运算结果
                 if (isItem(syms[k + 1], tp, formulas[k + 2], result, carry, abdication)):  # 判断第二步运算结果
                     rs = eval("{}{}{}{}{}{}{}".format("(", a, getSymbol(s1), b, ")", getSymbol(s2), c, ))
-                    if is_result == 0:
-                        return "{}{}{}{}{}{}{}=".format("(", a, repSymbol(s1), b, ")", repSymbol(s2), c, )
-                    elif is_result == 1:
-                        st = "{}{}{}{}{}{}{}={}".format("(", a, repSymbol(s1), b, ")", repSymbol(s2), c, rs)
-                        return getRandomItem(st)
+                    return getXStepstr("{}{}{}{}{}{}{}=".format("(", a, repSymbol(s1), b, ")", repSymbol(s2), c, ), str(rs),
+                                       is_result)
                 else:
                     return False
             else:
@@ -81,11 +74,9 @@ def getTwoStep(formulas, result, symbols, carry, abdication, is_bracket, is_resu
                 tp = eval(str(formulas[k]) + getSymbol(syms[k]) + str(formulas[k + 1]))  # 括号内的运算结果
                 if (isItem(syms[k - 1], formulas[k - 1], tp, result, carry, abdication)):  # 判断第二步运算结果
                     rs = eval("{}{}{}{}{}{}{}".format(a, getSymbol(s1), "(", b, getSymbol(s2), c, ")"))
-                    if is_result == 0:
-                        return "{}{}{}{}{}{}{}=".format(a, repSymbol(s1), "(", b, repSymbol(s2), c, ")")
-                    elif is_result == 1:
-                        st = "{}{}{}{}{}{}{}={}".format(a, repSymbol(s1), "(", b, repSymbol(s2), c, ")", rs)
-                        return getRandomItem(st)
+                    return getXStepstr("{}{}{}{}{}{}{}=".format(a, repSymbol(s1), "(", b, repSymbol(s2), c, ")"),
+                                       str(rs),
+                                       is_result)
                 else:
                     return False
             else:
@@ -95,6 +86,23 @@ def getTwoStep(formulas, result, symbols, carry, abdication, is_bracket, is_resu
 
     else:
         return False
+def getXStepstr(src,rs,is_result):
+    '''
+    Author  : J.sky
+    Mail    : bosichong@qq.com
+    给定一组算式和其结果，根据条件生成求结果或是求算数项的题型
+    :param src: str 算式
+    :param rs : str 结果
+    :param is_result: 0or1
+    :return: str
+    '''
+    if is_result == 0:
+        return src
+    elif is_result ==1:
+        return getRandomItem(src+rs)
+    else:
+        raise Exception ("is_result求结果，求算数项参数设置错误！")
+
 
 
 def getRandomItem(sr):
@@ -450,15 +458,8 @@ def getOneStr(a, b, is_result, signum):
     :return: str
     '''
 
-    if is_result == 0:  # 求结果
-        return "{}{}{}=".format(a, repSymbol(signum), b)
-    elif is_result == 1:  # 求运算项
-        # 随机分配求运算项
-        rst = int(eval(str(a) + getSymbol(signum) + str(b)))
-
-        return getRandomItem("{}{}{}={}".format(a, repSymbol(signum), b, rst))
-    else:
-        raise Exception("求结果求运算项参数设置错误。")
+    rst = int(eval(str(a) + getSymbol(signum) + str(b)))
+    return getXStepstr("{}{}{}=".format(a, repSymbol(signum), b),str(rst),is_result)
 
 
 def getRandomNum(list, step):