Form add prop label-colon

src/components/form/form-item.vue

@@ -1,6 +1,6 @@
 <template>
     <div :class="classes">
-        <label :class="[prefixCls + '-label']" :for="labelFor" :style="labelStyles" v-if="label || $slots.label"><slot name="label">{{ label }}</slot></label>
+        <label :class="[prefixCls + '-label']" :for="labelFor" :style="labelStyles" v-if="label || $slots.label"><slot name="label">{{ label }}{{ form.colon }}</slot></label>
         <div :class="[prefixCls + '-content']" :style="contentStyles">
             <slot></slot>
             <transition name="fade">

src/components/form/form.vue

@@ -42,6 +42,11 @@
             hideRequiredMark: {
                 type: Boolean,
                 default: false
+            },
+            // 4.0.0
+            labelColon: {
+                type: [Boolean, String],
+                default: false
             }
         },
         provide() {
@@ -62,6 +67,13 @@
                         [`${prefixCls}-hide-required-mark`]: this.hideRequiredMark
                     }
                 ];
+            },
+            colon () {
+                let colon = '';
+                if (this.labelColon) {
+                    colon = (typeof this.labelColon === 'boolean') ? ':' : this.labelColon;
+                }
+                return colon;
             }
         },
         methods: {