convinced me that UNIX is more interesting and had a brighter the future than IBM's Vm/cms, and I took his advice an D applied for a account on one of the Sequent machines. The following week, I was the proud owner of a account on sage.cc, complete with the princely allocation of kilobytes of disk storage. (Yes, I ' m being sarcastic-500 kilobytes is a miserly sum, even for 1992.) I eventually found ways to circumvent it.) My appetite for UNIX is ravenous that winter. I spent most evenings in t
In C + +, the string is encapsulated into a data type string, which can be declared directly and assigned a string operation such as a value. The following are the differences between string in the C string and C + +:
C stringString Object (c + +)Required header file nameHeader file reason requiredIn order to use String functionsIn order to use the String classDeclaration modeChar name[20];String name;Initialization modeChar name[20]= "Nihao";String name = "Nihao";Must the string length be decl
some services are intermittent, all services are strung together to find every nook and cranny of your life. You are renting, buying a house to accumulate the credit, at the same time will be in making friends, or sell second-hand mobile phone when manifests. Because credit is cross-industry, personal consistency and consistency. Credit can be shared in the whole classified information field of Word-of-mouth, even with Taobao and Alibaba.
In this way
();
});
Cancels the button event $ ("#noOk"). Click (function () {$ (". Dialog"). Hide ();
$ (". Mask"). Hide ();
});
OK button leave $ ("#ok"). Click (function () {$ (". Dialog"). Hide ();
$ (". Mask"). Hide (); if ($ ("input:checked"). Length!=0) {//Note filter selector cannot exist in the middle of a space $ ("input:checked") This is the wrong $ (". Divshow"). Remove ();//delete a piece of data}
}); });
It is i
System variables, display all variables of the current shell set reference variable $ plus variable nameGlobal variable: Export variable nameAssign the return value of the command to the variable: a= ' ls-la ' inverted quote equals a=$ (Ls-la)Judgment statement: [condition] echo OK | | Echo Nook (conditional execution later code execution | | The following code)Defines a function function name () {}Simple shell command
Tags: tmp One mode add error file Erro script case. ShLogical judgments in shell scripts
Format 1:if condition; Then statement; Fi (Common)
#以命令的方式表达[[emailprotected] ~]# for i in `seq 1 5`; do echo $i; done12345[[emailprotected] ~]# for i in `seq 1 5`> do> echo $i> done12345[[emailprotected] ~]# a=5[[emailprotected] ~]# if [ $a -gt 3 ]> then> echo ok> fiok[[emailprotected] ~]# if [ $a -gt 3 ]; then echo ok; fiok#脚本执行[[emailprotected] ~]# cd shell/[[emailprotected] shell]# vi if1.s
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