@miao5169935 The part of the datasheet you reference is trying to tell you that if you apply 5v to the input, you can expect 0.88mA at most of current flow as a result.
Note that max & min values are two sides of the same coin depending on whether one is describing device behavior or application considerations; “It takes a maximum of X volts to turn the transistor on” is the flipside to “Apply a minimum of X volts to be assured that the transistor will turn on.” The former perspective focuses on the behavior of the part itself, and thus is the format typically used in datasheets; look just a bit further up that same page in the datasheet, and you’ll find the minimum value you’re after from an application perspective expressed as a maximum from a part behavior perspective.
Also, if you look further down that page, you’ll see that the part’s current gain is characterized as being at least a factor of 68; multiply that by your 1.14mA figure, and you get a result about 10% over the Abs. Max. collector current for the part–in other words, it’s probably enough base current for most any permissible amount of collector current one might care to switch.