v2.1.15 — 勤学打卡支持增加和删除习惯

static/app.js

@@ -291,16 +291,25 @@
       addEveningRow(item.mistake || '', item.improvement || '');
     }
 
-    // 勤学 — 渲染预设项目并回填状态
+    // 勤学 — 渲染已保存习惯 + 未渲染预设
     var studyMap = {};
     for (var si=0; si<study.length; si++) {
       studyMap[study[si].name] = study[si];
     }
+    var rendered = {};
     document.getElementById('study-cards').innerHTML = '';
+    for (var sk=0; sk<study.length; sk++) {
+      var item = study[sk];
+      if (item.name) {
+        renderStudyCard(item.name, item.count || 0, item.last_checkin_date || '');
+        rendered[item.name] = true;
+      }
+    }
     for (var sp=0; sp<PRESET_STUDY_ITEMS.length; sp++) {
       var sName = PRESET_STUDY_ITEMS[sp];
-      var saved = studyMap[sName] || { count: 0 };
-      renderStudyCard(sName, saved.count || 0, saved.last_checkin_date || '');
+      if (!rendered[sName]) {
+        renderStudyCard(sName, 0, '');
+      }
     }
   }
 
@@ -355,6 +364,7 @@
     div.className = 'study-card' + (checked ? ' checked' : '');
     div.setAttribute('data-last-date', lastDate || '');
     div.innerHTML =
+      '<button class="study-card-del" onclick="deleteStudyItem(this)" title="删除">×</button>' +
       '<div class="study-card-info">' +
         '<span class="study-card-name">' + esc(name) + '</span>' +
         '<span class="study-card-count">' + count + '</span>' +
@@ -363,6 +373,21 @@
     container.appendChild(div);
   }
 
+  window.addStudyItem = function() {
+    var name = prompt('请输入新习惯名称：');
+    if (!name || !name.trim()) return;
+    renderStudyCard(name.trim(), 0, '');
+    triggerAutoSave();
+  };
+
+  window.deleteStudyItem = function(btn) {
+    var card = btn.closest('.study-card');
+    var nameEl = card.querySelector('.study-card-name');
+    if (nameEl && !confirm('确定删除「' + nameEl.textContent + '」？')) return;
+    card.remove();
+    triggerAutoSave();
+  };
+
   window.checkinStudy = function(btn) {
     var card = btn.closest('.study-card');
     var today = fmtDate(new Date());