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go-tutorial's Issues

lesson10: 数组:一维数组和多维数组(可以再补充一点 :changeArray4可以改变实参的值)

// changeArray无法改变实参数组的值
func changeArray(array [3]int) {
array[0] = 10
}

// changeArray2可以改变实参的值
func changeArray2(array *[3]int) {
array[0] = 10
}

// changeArray3可以改变实参的值
func changeArray3(array []int) {
array[0] = 10
}

// changeArray4可以改变实参的值==================补充一下
func changeArray4(array ...int) {
array[0] = 100
}

param := [3]int{1,2,3}
changeArray(param)
fmt.Println("param=", param) // param= [1 2 3]
changeArray2(&param)
fmt.Println("param=", param) // param= [10 2 3]

sliceArray := []int{1,2,3}
changeArray3(sliceArray)
fmt.Println("sliceArray=", sliceArray) // sliceArray= [10 2 3]
changeArray4(sliceArray...)
fmt.Println("sliceArray=", sliceArray) // sliceArray= [100 2 3]

lesson8: 函数,闭包和方法(可以再补充一点:函数高级用法)

package main

import "fmt"
import "math"

// define function getSquareRoot1
func getSquareRoot1(x float64) float64 {
return math.Sqrt(x)
}

// deffine a function variable
var getSquareRoot2 = func(x float64) float64 {
return math.Sqrt(x)
}

// deffine a function variable ========================补充
var getSquareRoot3 = math.Sqrt

grpc issue

希望可以出更多的rpc相关的文章

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