哪吒打字编程打字课 JavaS[函数基础]

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f

u

n

c

t

i

o

n

ˈfʌŋkʃn

函数，执行特定任务的代码块

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d

e

c

l

a

r

e

dɪˈkleə(r)

声明，定义函数的过程

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d

e

f

i

n

e

dɪˈfaɪn

定义，确定函数的功能和结构

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n

a

m

e

neɪm

名称，函数的标识

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p

a

r

a

m

e

t

e

r

pəˈræmɪtə(r)

参数，函数定义时的输入变量

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a

r

g

u

m

e

n

t

ˈɑːɡjumənt

实参，调用函数时传入的具体值

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r

e

t

u

r

n

rɪˈtɜːn

返回，函数执行后给出的结果

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c

a

l

l

kɔːl

调用，执行函数的操作

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i

n

v

o

k

e

ɪnˈvəʊk

调用，与 call 意思相近

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b

o

d

y

ˈbɒdi

函数体，函数中包含的代码块

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s

c

o

p

e

skəʊp

作用域，函数内变量的可访问范围

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l

o

c

a

l

ˈləʊkl

局部的，函数内部的变量

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g

l

o

b

a

l

ˈɡləʊbl

全局的，函数外部可访问的变量

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a

n

o

n

y

m

o

u

s

əˈnɒnɪməs

匿名的，没有名称的函数

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h

o

i

s

t

i

n

g

ˈhɔɪstɪŋ

提升，函数声明被提升到作用域顶部的现象

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x

p

r

e

s

s

i

o

n

ɪkˈspreʃn

表达式，函数表达式的简称

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a

t

e

m

e

n

t

ˈsteɪtmənt

语句，函数声明的简称

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a

r

r

o

w

ˈærəʊ

箭头，箭头函数的标识

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t

h

i

s

ðɪs/pro

这个，函数内部指向当前对象的关键字

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u

n

d

e

f

i

n

e

d

ˌʌndɪˈfaɪnd

未定义的，函数无返回值时的默认结果

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v

a

l

u

e

ˈvæljuː

值，函数返回的具体数据

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t

y

p

e

taɪp

类型，函数返回值的数据类型

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p

a

r

e

n

t

h

e

s

e

s

pəˈrenθəsiːz

圆括号，函数参数和调用时使用

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b

r

a

c

k

e

t

s

ˈbrækɪts

花括号，函数体的边界符号

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c

o

m

m

a

ˈkɒmə

逗号，分隔函数参数的符号

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s

e

m

i

c

o

l

o

n

ˌsemɪˈkəʊlən

分号，函数语句结束的符号

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d

e

f

a

u

l

t

dɪˈfɔːlt

默认的，函数参数的默认值

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r

e

s

t

rest

剩余的，获取剩余参数的关键字

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s

p

r

e

a

d

spred

展开，将数组展开为参数的操作

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c

a

l

l

b

a

c

k

ˈkɔːlbæk

回调，作为参数传递的函数

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h

i

g

h

e

r

-

o

r

d

e

r

ˌhaɪə ˈɔːdə(r)

高阶的，接收或返回函数的函数

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p

u

r

e

pjʊə(r)

纯的，输出仅由输入决定的函数

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i

m

p

u

r

e

ɪmˈpjʊə(r)

不纯的，输出受外部影响的函数

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r

e

c

u

r

s

i

o

n

rɪˈkɜːʃn

递归，函数调用自身的行为

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b

a

s

e

beɪs

基础，递归函数的终止条件

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c

a

s

e

keɪs

情况，递归函数中的不同处理场景

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i

n

v

o

k

e

ɪnˈvəʊk

调用，执行函数的动作

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e

x

e

c

u

t

e

ˈeksɪkjuːt

执行，函数运行的过程

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e

v

a

l

u

a

t

e

ɪˈvæljueɪt

计算，函数对输入进行处理的过程

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n

(

)

{

}

函数声明的基本结构

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=

>

{

}

箭头函数的基本结构

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c

t

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n

a

m

e

(

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{

}

带名称的函数声明

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n

a

m

e

(

)

函数调用的基本形式

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r

e

t

u

r

n

v

a

l

u

e

函数返回值的基本形式

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(

a

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b

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{

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带参数的函数声明

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