問題出現
加載license文件，顯示激活成功！然而，生活總是會給你意想不到的驚喜！！
當你以爲終於能夠幸福的使用Matlab時，卻發現：好像曾經見過你！！
還是很熟悉的界面，彷彿進入了一個新的世界！！哈哈哈！！
於是你懷疑自己是不是剛剛自己處於夢遊狀態，沒有點擊正確的license文件，又或者是根本沒有進行激活這一步。於是你驗證自己的猜想，將眼睛瞪圓，盯着鼠標走過的每一個像素點，確保自己每一步都是正確的。然而並沒有！！
分析問題
是因爲license文件的授權過期了。
解決方案
一、更改系統時間
權宜之計，不能一勞永逸的解決問題。當你的系統時間，又超過了期限，你還要再接着改？
二、更改license文件
在license文件的末尾添加如下代碼，並將其後綴名改爲.dat,再一次進行你剛剛已經做了好幾遍的激活操作。
INCREMENT Aerospace_Blockset MLM 99 permanent uncounted \
A05070F00D1EB1F92326 VENDOR_STRING=QQ=47399897 HOSTID=ANY \
ck=216 SN=888888 TS_OK
INCREMENT Aerospace_Toolbox MLM 99 permanent uncounted \
6090F0C08395D4289512 VENDOR_STRING=QQ=47399897 HOSTID=ANY \
ck=237 SN=888888 TS_OK
INCREMENT Bioinformatics_Toolbox MLM 99 permanent uncounted \
40E0B0406DE56D23A426 VENDOR_STRING=QQ=47399897 HOSTID=ANY \
ck=190 SN=888888 TS_OK
INCREMENT Cert_Kit_IEC MLM 99 permanent uncounted \
9080309041D2DCCB2B10 VENDOR_STRING=QQ=47399897 HOSTID=ANY \
ck=179 SN=888888 TS_OK
INCREMENT Communication_Blocks MLM 99 permanent uncounted \
80E010304ACCEEB5E0AA VENDOR_STRING=QQ=47399897 HOSTID=ANY \
ck=77 SN=888888 TS_OK
INCREMENT Communication_Toolbox MLM 99 permanent uncounted \
C0003000770A1A086530 VENDOR_STRING=QQ=47399897 HOSTID=ANY \
ck=162 SN=888888 TS_OK
INCREMENT Compiler MLM 99 permanent uncounted 60D0C0F0DC03C2F72FF7 \
VENDOR_STRING=QQ=47399897 HOSTID=ANY ck=232 SN=888888 TS_OK
INCREMENT Control_Toolbox MLM 99 permanent uncounted \
6020E0B00B7ECE0893BB VENDOR_STRING=QQ=47399897 HOSTID=ANY ck=7 \
SN=888888 TS_OK
INCREMENT Curve_Fitting_Toolbox MLM 99 permanent uncounted \
10703080061FF9DA5A81 VENDOR_STRING=QQ=47399897 HOSTID=ANY \
ck=229 SN=888888 TS_OK
INCREMENT Data_Acq_Toolbox MLM 99 permanent uncounted \
E0B0E0E05124CF4A1A8D VENDOR_STRING=QQ=47399897 HOSTID=ANY \
ck=21 SN=888888 TS_OK
INCREMENT Database_Toolbox MLM 99 permanent uncounted \
0010D0B02CA7353F8314 VENDOR_STRING=QQ=47399897 HOSTID=ANY \
ck=230 SN=888888 TS_OK
INCREMENT Datafeed_Toolbox MLM 99 permanent uncounted \
40905060D1ECD939538F VENDOR_STRING=QQ=47399897 HOSTID=ANY \
ck=185 SN=888888 TS_OK
INCREMENT Dial_and_Gauge_Blocks MLM 99 permanent uncounted \
A0F05070AA9AEBF40588 VENDOR_STRING=QQ=47399897 HOSTID=ANY \
ck=226 SN=888888 TS_OK
INCREMENT Distrib_Computing_Toolbox MLM 99 permanent uncounted \
5000D00031D2C6B89F9C VENDOR_STRING=QQ=47399897 HOSTID=ANY \
ck=229 SN=888888 TS_OK
INCREMENT EDA_Simulator_Link MLM 99 permanent uncounted \
E070C0C02B4B90B5A8D0 VENDOR_STRING=QQ=47399897 HOSTID=ANY \
ck=205 SN=888888 TS_OK
INCREMENT Econometrics_Toolbox MLM 99 permanent uncounted \
505010F00EB1289A73BA VENDOR_STRING=QQ=47399897 HOSTID=ANY \
ck=149 SN=888888 TS_OK
INCREMENT Embedded_IDE_Link MLM 99 permanent uncounted \
90E01090A9BDA4FF67D7 VENDOR_STRING=QQ=47399897 HOSTID=ANY \
ck=254 SN=888888 TS_OK
INCREMENT Excel_Link MLM 99 permanent uncounted E0800080FED6DF10E43F \
VENDOR_STRING=QQ=47399897 HOSTID=ANY ck=207 SN=888888 TS_OK
INCREMENT Filter_Design_HDL_Coder MLM 99 permanent uncounted \
3050B02039903259577E VENDOR_STRING=QQ=47399897 HOSTID=ANY \
ck=181 SN=888888 TS_OK
INCREMENT Filter_Design_Toolbox MLM 99 permanent uncounted \
3000E0B02C875CDF5823 VENDOR_STRING=QQ=47399897 HOSTID=ANY \
ck=239 SN=888888 TS_OK
INCREMENT Fin_Derivatives_Toolbox MLM 99 permanent uncounted \
70A010D017A8FA7CE955 VENDOR_STRING=QQ=47399897 HOSTID=ANY \
ck=247 SN=888888 TS_OK
INCREMENT Financial_Toolbox MLM 99 permanent uncounted \
20E050A0ACC6A69E7AEE VENDOR_STRING=QQ=47399897 HOSTID=ANY \
ck=241 SN=888888 TS_OK
INCREMENT Fixed-Point_Blocks MLM 99 permanent uncounted \
E0206040ED6EF9BCCB3B VENDOR_STRING=QQ=47399897 HOSTID=ANY \
ck=11 SN=888888 TS_OK
INCREMENT Fixed_Income_Toolbox MLM 99 permanent uncounted \
50E090D0C130F6416176 VENDOR_STRING=QQ=47399897 HOSTID=ANY \
ck=132 SN=888888 TS_OK
INCREMENT Fixed_Point_Toolbox MLM 99 permanent uncounted \
C07000703494010EF55C VENDOR_STRING=QQ=47399897 HOSTID=ANY \
ck=154 SN=888888 TS_OK
INCREMENT Fuzzy_Toolbox MLM 99 permanent uncounted \
D04010B048FB8D350E4E VENDOR_STRING=QQ=47399897 HOSTID=ANY \
ck=233 SN=888888 TS_OK
INCREMENT GADS_Toolbox MLM 99 permanent uncounted \
50D0900087384B51643A VENDOR_STRING=QQ=47399897 HOSTID=ANY \
ck=210 SN=888888 TS_OK
INCREMENT Identification_Toolbox MLM 99 permanent uncounted \
00707080A0CC0D8FB71E VENDOR_STRING=QQ=47399897 HOSTID=ANY \
ck=190 SN=888888 TS_OK
INCREMENT Image_Acquisition_Toolbox MLM 99 permanent uncounted \
50D0D0905C22130C4D2A VENDOR_STRING=QQ=47399897 HOSTID=ANY \
ck=208 SN=888888 TS_OK
INCREMENT Image_Toolbox MLM 99 permanent uncounted \
B01030E0F517B496275C VENDOR_STRING=QQ=47399897 HOSTID=ANY \
ck=133 SN=888888 TS_OK
INCREMENT Instr_Control_Toolbox MLM 99 permanent uncounted \
80C0505033C162F3017F VENDOR_STRING=QQ=47399897 HOSTID=ANY \
ck=169 SN=888888 TS_OK
INCREMENT MAP_Toolbox MLM 99 permanent uncounted C090E0E022BD3BA852B3 \
VENDOR_STRING=QQ=47399897 HOSTID=ANY ck=4 SN=888888 TS_OK
INCREMENT MATLAB_Report_Gen MLM 99 permanent uncounted \
80B000B00052F620FB11 VENDOR_STRING=QQ=47399897 HOSTID=ANY \
ck=190 SN=888888 TS_OK
INCREMENT MATLAB_Distrib_Comp_Engine MLM 99 permanent uncounted \
804080300CB545FBECE8 VENDOR_STRING=QQ=47399897 HOSTID=ANY \
ck=233 SN=888888 TS_OK
INCREMENT MATLAB_Builder_for_Java MLM 99 permanent uncounted \
404040707C2CA5639DEE VENDOR_STRING=QQ=47399897 HOSTID=ANY \
ck=186 SN=888888 TS_OK
INCREMENT MATLAB_Builder_for_dot_Net MLM 99 permanent uncounted \
8070E0D0FFAA645DA39D VENDOR_STRING=QQ=47399897 HOSTID=ANY \
ck=255 SN=888888 TS_OK
INCREMENT MATLAB MLM 99 permanent uncounted 50E0F0D08F6CEF24CC5B \
VENDOR_STRING=QQ=47399897 HOSTID=ANY ck=14 SN=888888 TS_OK
INCREMENT MATLAB_Excel_Builder MLM 99 permanent uncounted \
50106010BCBF479623D9 VENDOR_STRING=QQ=47399897 HOSTID=ANY \
ck=206 SN=888888 TS_OK
INCREMENT MBC_Toolbox MLM 99 permanent uncounted B05000C02F157C5BEE28 \
VENDOR_STRING=QQ=47399897 HOSTID=ANY ck=198 SN=888888 TS_OK
INCREMENT MPC_Toolbox MLM 99 permanent uncounted 3050206087BF1C33045E \
VENDOR_STRING=QQ=47399897 HOSTID=ANY ck=203 SN=888888 TS_OK
INCREMENT Neural_Network_Toolbox MLM 99 permanent uncounted \
D0009010451EEB5A283F VENDOR_STRING=QQ=47399897 HOSTID=ANY \
ck=198 SN=888888 TS_OK
一頓騷操作後，你再次溫柔點擊Matlab.exe圖標，生怕還是出現似曾相識的它。
然而，這一次生活給你的是你夢寐以求的激活成功的Matlab。
開始你的Matlab之旅吧，騷年！
參考
https://blog.csdn.net/weixin_40398288/article/details/78537123