algorithmic routine: merge sort, quick sort, heapsort etc.
Part I: sort for int, float32 and float64
1 merge sort: src/mySort/mergeSort.go
1.1 eg for the usage of merge sort: src/mySort/test
2 quickSort: src/mySort/quickSort.go 2.1 eg for the usage of quickSort: src/mySort/test
Part II: the examples of go code
1 func defer: /src/defer/main.go 2 add the usage of log: /src/log/mylog 3 add the usage of enconding/json: /src/json