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2016年最适合小投资的10个创业项目 - 资讯 - 清泛网 - 专注C/C++及内核技术

...成本1-2元,收50-80元,日收活在50件以上,加上各种疑难问题衣服处理,扣除工商、税务、水电、房租等费用,年利可达8万元以上。 项目二、宠物产业 花3-5万元开家庞物用品店,投入少、利润高,不需要过多专业技术,最为切...
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Do you need break in switch when return is used?

...break, the return stops execution of the function. (for reference: http://php.net/manual/en/function.return.php says: If called from within a function, the return() statement immediately ends execution of the current function ) ...
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Get Insert Statement for existing row in MySQL

... I wrote a php function that will do this. I needed to make an insert statement in case a record needs to be replaced after deletion for a history table: function makeRecoverySQL($table, $id) { // get the record $sel...
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How to round float numbers in javascript?

... Number((456.1235).toFixed(3)) -> 456.123, Number((1.235).toFixed(2)) -> 1.24... Stupid JavaSript... – NoOne Jun 21 '15 at 9:31 ...
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How to change or add theme to Android Studio?

... 123 //you need to go to the File-> settings in that choose IDE settings-> Appearance in tha...
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How to automatically add user account AND password with a Bash script?

... 123 You can run the passwd command and send it piped input. So, do something like: echo thePassw...
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Remove duplicated rows

...for larger data sets library(microbenchmark) library(data.table) set.seed(123) DF <- as.data.frame(matrix(sample(1e8, 1e5, replace = TRUE), ncol = 10)) DT <- copy(DF) setDT(DT) microbenchmark(unique(DF), unique(DT)) # Unit: microseconds # expr min lq mean median ...
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Using javadoc for Python documentation [closed]

I am currently beginning with Python and I have a strong PHP background and in PHP I have took the habit of using javadoc as a documentation template. ...
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Rank function in MySQL

... Can you also let us know how is .php code exactly should be? I tried to follow, but above code does not work. How to input to .php format? – creator Apr 27 '15 at 12:00 ...
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Convert javascript array to string

... 123 Converting From Array to String is So Easy ! var A = ['Sunday','Monday','Tuesday','Wednesday'...