<ruby id="bdb3f"></ruby>

    <p id="bdb3f"><cite id="bdb3f"></cite></p>

      

      <p id="bdb3f"><cite id="bdb3f"><th id="bdb3f"></th></cite></p><p id="bdb3f"></p>
        <p id="bdb3f"><cite id="bdb3f"></cite></p>
          

          <pre id="bdb3f"></pre>
          <pre id="bdb3f"><del id="bdb3f"><thead id="bdb3f"></thead></del></pre>
          

          <ruby id="bdb3f"><mark id="bdb3f"></mark></ruby><ruby id="bdb3f"></ruby>
          <pre id="bdb3f"><pre id="bdb3f"><mark id="bdb3f"></mark></pre></pre><output id="bdb3f"></output><p id="bdb3f"></p><p id="bdb3f"></p>
          

          <pre id="bdb3f"><del id="bdb3f"><progress id="bdb3f"></progress></del></pre>
                <ruby id="bdb3f"></ruby>
                
    


                
  
                                            
                            
        
                
          ??碼云GVP開源項目 12k star Uniapp+ElementUI 功能強大 支持多語言、二開方便！
          廣告
        
                        
                                                                        
  

                

                
    
                
        
                
                            局部作用域:指一個函數的內部范圍,對應這樣的變量叫”局部變量”

超全局作用域:指所有的代碼范圍,對應這樣的變量就稱為”超全局變量”

全局作用域:就是不在函數內部的范圍,函數外部.對應這樣的變量就稱為”全局變量”

通常:1全局范圍不能訪問局部變量

2局部范圍不能訪問全局變量

3函數內部的變量(局部變量),通常在函數調用結束,就銷毀了

4\.但有一種局部變量,在函數調用結束后不被銷毀,它叫”靜態變量”


                    
                
        
                
            
        
                
    
                
    
                
        
                
    
                

                







                  <ruby id="bdb3f"></ruby>
                  <p id="bdb3f"><cite id="bdb3f"></cite></p>
                    

                    <p id="bdb3f"><cite id="bdb3f"><th id="bdb3f"></th></cite></p><p id="bdb3f"></p>
                      <p id="bdb3f"><cite id="bdb3f"></cite></p>
                        

                        <pre id="bdb3f"></pre>
                        <pre id="bdb3f"><del id="bdb3f"><thead id="bdb3f"></thead></del></pre>
                        

                        <ruby id="bdb3f"><mark id="bdb3f"></mark></ruby><ruby id="bdb3f"></ruby>
                        <pre id="bdb3f"><pre id="bdb3f"><mark id="bdb3f"></mark></pre></pre><output id="bdb3f"></output><p id="bdb3f"></p><p id="bdb3f"></p>
                        

                        <pre id="bdb3f"><del id="bdb3f"><progress id="bdb3f"></progress></del></pre>
                              <ruby id="bdb3f"></ruby>
                              

哎呀哎呀视频在线观看