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                            [TOC]

## 1：基本介紹
在Go中，數據類型都有一個默認值，當程序員沒有賦值時，就會保留默認值，在Go
中默認值又叫零值

<br>

## 2：基本數據類型如下：
![](https://img.kancloud.cn/f4/5d/f45d3a967db20343fc516d778ce7bc1f_415x124.png)
**案例演示**
```
package main
import (
	"fmt"
)
func main(){
	var a int
	var b float32
	var c float64
	var d bool
	var e string
	fmt.Printf("a = %d  b =%f  c = %v  d = %v  e = %v",a,b,c,d,e)
}
```
**運行結果：**
`a = 0  b =0.000000  c = 0  d = false  e = [Finished in 0.4s]`














                    
                
        
                
            
        
                
    
                
    
                
        
                
    
                

                







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