node.js-npm run dev 报错求助

JavaScript019

node.js-npm run dev 报错求助,第1张

Npm run dev报错

字符常量'a'和字符串常量"a"虽然都只有一个字符,但在内存中的情况是不同的。

'a'在内存中占一个字节,可表示为:

a

"a"在内存中占二个字节,可表示为:

a\0

3.6变量赋初值

在程序中常常需要对变量赋初值,以便使用变量。语言程序中可有多种方法为变量提供初值。本小节先介绍在作变量定义的同时给变量赋以初值的方法。这种方法称为初始化。在变量定义中赋初值的一般形式为:

类型说明符 变量1= 值1,变量2= 值2,……;

例如:

int a=3;

int b,c=5

floatx=3.2,y=3f,z=0.75

charch1='K',ch2='P'

应注意,在定义中不允许连续赋值,如a=b=c=5是不合法的。

本回答由网友推荐

评论

0 1

xywjyy V2 |向TA咨询

擅长: IT

其他回答

npm run dev

npm运行dev任务

dev的任务需要在package.json中定义,例如

"scripts": {

"dev": "gulp"

[js压缩]uglifyjs source.js -mc -o target.min.js

压缩angular.js例压缩局部变量名掉用局部变量空白符等压缩比例接近80%效率错

[user_00@localhost ~]$ uglifyjs angular.js -mc -o angular.min.js

WARN: Dropping unused function isBoolean [angular.js:416,9]

WARN: Dropping unused function makeMap [angular.js:446,9]

WARN: Dropping unused function size [angular.js:488,9]

WARN: Dropping unused function isLeafNode [angular.js:523,9]

WARN: Dropping unused function argument boundTranscludeFn [angular.js:4682,27]

WARN: Dropping unused function argument rootElement [angular.js:4681,16]

WARN: Dropping unused function argument nodeList [angular.js:4680,17]

WARN: Dropping unused function argument scope [angular.js:4679,22]

WARN: Dropping unused function nodesetLinkingFn [angular.js:4678,9]

WARN: Dropping unused function argument boundTranscludeFn [angular.js:4690,27]

WARN: Dropping unused function argument rootElement [angular.js:4689,16]

WARN: Dropping unused function argument node [angular.js:4688,13]

WARN: Dropping unused function argument scope [angular.js:4687,22]

WARN: Dropping unused function argument nodesetLinkingFn [angular.js:4686,25]

WARN: Dropping unused function directiveLinkingFn [angular.js:4685,9]

WARN: Dropping unused function stripHash [angular.js:5009,9]

WARN: Dropping unused variable NG_SWITCH [angular.js:13857,4]

WARN: Dropping unused variable fns [angular.js:1536,8]

WARN: Dropping unused variable events [angular.js:1536,13]

WARN: Dropping unused function wrongMode [angular.js:3879,13]

WARN: Dropping unused function argument cause [angular.js:4799,31]

WARN: Dropping unused function argument exception [angular.js:4799,20]

WARN: Dropping unused function argument args [angular.js:8165,28]

WARN: Dropping unused function argument args [angular.js:8231,33]

WARN: Dropping unused function argument names [angular.js:9018,32]

WARN: Dropping unused function argument name [angular.js:9030,40]

WARN: Dropping unused variable value [angular.js:9230,14]

WARN: Dropping unused function argument value [angular.js:12475,36]

[user_00@localhost ~]$ ls -lh angular.*

-rw-rw-r-- 1 user_00 user_00 479K Apr 5 01:53 angular.js

-rw-rw-r-- 1 user_00 user_00 79K May 4 16:09 angular.min.js

现我test.tar文件通tar -xvf test.tar 解压缩文件夹test现我想解压缩文件夹名称直接改123,命令哪位帮忙答