修改登录页

src/app/routes/passport/login/login.component.html

@@ -31,7 +31,7 @@
           <input nz-input type="text" formControlName="mobile" placeholder="手机号" [(ngModel)]="phone" [disabled]="true"/>
         </nz-input-group>
       </nz-form-control>
-      <button nz-button nzType="primary" type="button" (click)="getCaptcha();$event.preventDefault()" nzSize="large">{{btnContent == 0?'获取验证码':btnContent}}</button>
+      <button nz-button nzType="primary" type="button" [disabled]="btnContent >= 1" (click)="getCaptcha();$event.preventDefault()" nzSize="large">{{btnContent == 0?'获取验证码':btnContent}}</button>
     </nz-form-item>
     <nz-form-item>
       <nz-form-control [nzErrorTip]="'请输入验证码!' | i18n">