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] 2.7.4 Indent 22 123456789101112131415 >>> A = 4>>> If a > 3:... if a ... print ("I ' M Four").. else:... print ("I ' m a little number")...I ' M four>>> If a > 3:... if a ... print ("I ' M Four").. else:... print ("I ' m a big number")...I ' M four 2.8 IPython 232.8.1 IPython Shell 232.8.2 IPython Qt-console 242.9 PyPI Warehouse--python Package Index 252.1 + Python IDE 262.10.1 IDLE 262.10.2 Spyder 272.10.3 Eclipse (PyDev) 272.10.4 Sublime 282.10.5 Liclipse 292

Initializing an array arr = Np.array ([[1,2],[3,4]])arr = Np.array ([[1,2],[3,4]], Dtype=complex)arr = Np.zeros ((3,4))arr = Np.ones (())arr = Np.arange (4,10). Reshape (2,3)arr = Np.linspace (0,1,6) #[0.0,0.2,0.4,0.6,0.8,1.0]arr = Np.random.random (3)arr = Np.random.random ((5,2)) Array built-in functions Type (arr): Numpy.ndarrayArr.dtype:int32, float64 ...Arr.ndim:2Arr.size:4Arr.shape: (2l,2l)Arr.itemsize:4 Array calculation function Arr+1: Elements andArr*2:

, derived from the ID field in the Show Processlist results list.The KILL command supports two optional parameters, connection, and query.CONNECTION QUERY Terminates the statement the connection is currently executing, but leaves the connectionitself intact.Very simple,connection option, kill the time, the connection will also be broken, and the query option, the kill process just kill the command, the connection remains. When the kill instruction does not specify the connection or query option,