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                合規國際互聯網加速 OSASE為企業客戶提供高速穩定SD-WAN國際加速解決方案。 廣告
                #### 值傳遞 ``` 數字,字符串當作參數傳遞給函數,原來的數字,字符串不會改變。 ``` #### 默認參數 ``` def add(num1=1,num2=2): return num1+num2 print(add()) #,沒有默認參數的情況下,調用函數無比正確傳遞參數 #有默認值,可以不傳 print(add(3)) #傳遞參數,從左往右填充 print(add(3,9)) #傳遞參數覆蓋默認參數 ``` #### 位置參數 ``` def show(num1,num2,num3): print(num1,num2,num3) show(1,2,3) #位置參數,從左往右 ``` #### 名稱參數 ``` def show(num1,num2,num3): print(num1,num2,num3) show(num3=10,num2=20,num1=30) #名稱參數,可以亂序,指定名稱 ``` #### 可變參數 ``` 一個星號不會收集關鍵字參數, 兩個星號收集關鍵字參數 ``` ``` def add(*nums): for num in nums: print(num) add(1, 2, 3, 4) def add(**nums): for num in nums: print(num) add(num1=1, num2=2) ```
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